Watlow Electric Network Router EM00 GATE 0000 User Manual

EM Gateway  
User’s Manual  
For Watlow part number EM00-GATE-0000  
1241 Bundy Boulevard, P.O. Box 5580, Winona, Minnesota USA 55987-5580  
Phone: +1 (507) 454-5300, Fax: +1 (507) 452-4507, Internet: http://www.watlow.com  
0600-0040-0001 Rev D  
February 2004  
$10.00  
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EM Gateway  
Table of Contents – cont.  
Chapter 6:  
Chapter 7:  
Reference Documents  
25  
Reference Documents  
Serial Numbers  
25  
25  
Specifications  
26  
Power Supply  
Environmental  
Indication  
26  
26  
26  
26  
26  
26  
26  
26  
26  
27  
Agency  
Communications  
Control Output Signals  
Enclosure Size  
User Interface  
Ordering Information  
Declaration of Conformity  
How to Reach Us  
28  
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Chapter One  
Product Overview  
The EM00-GATE-0000 is a gateway / bridge that allows up to 32 Watlow controllers to be directly  
connected to an Ethernet network. Using an HTTP Browser such as Microsoft Internet Explorer or  
Netscape Navigator you may access 16 controllers and view several controllers’ parameters via an  
onboard Web (HTTP) server.  
Ethernet Gateway  
The Ethernet gateway provides a means for monitoring and configuring runtime parameters of multiple  
controllers via a web browser. The gateway is also a bridge for Modbus messages between the Ethernet  
bus and EIA-485 or EIA-232 links. The Gateway supports full product configuration; monitoring and  
configuration of runtime parameters via MODBUS TCP over TCP/IP using a software package such as  
Watview sold by Watlow.  
Ethernet Gateway Architecture  
This product has three physical connectivity points to the physical world. They are the serial (EIA-485 or  
EIA-232), Ethernet port (10BaseT), and the power supply pins.  
The EIA-485 / EIA-232 connection supports Modbus RTU protocol and operates as a Master port. It will  
initiate data read/write requests to supported standard Watlow controllers. There exists a virtual image of  
the controller’s data points in the gateway. The polling engine that initiates the Modbus RTU requests is  
responsible for synchronization of the virtual image and the actual controller. Changes to control data  
occur both at the controller and at the virtual image.  
The 10BaseT connection supports the TCP/IP stack. At the application layer it has an HTTP (web) and  
Modbus server. The HTTP server will provide current controller status from the virtual image via HTML.  
The HTTP server provides a means of changing some runtime parameters via HTML. The TCP/IP stack  
supports DHCP client, AutoIP, static IP, DNS client, and Netbios name resolution. The 10BaseT  
connector is an RJ45 per the IEEE 802.3 specification.  
The EM00-GATE-0000 can be used as a bridge for Modbus RTU messages. This is concurrent with all  
other communicating functions. In this scenario, the gateway simply passes the request that comes in on  
the Ethernet connection through to the EIA-485 or EIA-232 connection. When the response is returned  
from the controller, it is sent back on the Ethernet connection. No processing of the packet contents is  
necessary to bridge the two physical layers.  
Block Diagram of Gateway  
PowerSource  
Modbus  
Modbus  
TCP/IP  
RTU  
TFTP  
Client  
GATEWAY  
WEB  
Server  
Poll  
Engine  
Virtual  
Image  
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Program Upgrades  
The gateway has a TFTP server for the purposes of reprogramming the program memory. A program  
update will be initiated when a TFTP client, residing on a PC, begins to write a new program file to the  
gateway TFTP server. When reprogramming the program memory, all other gateway services are  
unavailable.  
The gateway provides no means of updating the program memory of controller devices, such as flashing  
new information into the Series F4.  
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Chapter Two  
Installation & Wiring  
UL Approved, Class 2 power supply  
required  
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Dimensions are in inches  
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Chapter Three  
Configuration  
Getting Started  
Perform these steps;  
1. Connect the EM00-GATE-0000 gateway to your computer’s Ethernet port using a cross-wired RJ45  
cable or connect the EM00-GATE-0000 to a hub or network using a straight wired RJ45 Category 5  
cable. The EM00-GATE-0000 is limited to a 10BaseT connection and will not work on an Ethernet  
port set for 100BaseT only. Use of a 10/100 hub will overcome this issue if your PC has only a  
100BaseT port.  
2. Wire the temperature controllers to the gateway’s EIA-485 port. You may connect the gateway’s EIA-  
232 port to a controller if you will be using only one controller, provided that the controller has an EIA-  
232 port.  
3. Wire a 24-volt AC or DC power supply to the gateway terminals. This is not polarity sensitive.  
4. Configure each controller to the same baud rate (9600 or 19200) from the front panel of the  
controller. Set each controller’s Modbus address to a unique number. As an example, set the first  
controller to address 1, the second to address 2 and so on.  
5. Power up the gateway, controllers and PC.  
6. Start your Internet browser. Enter the TCP/IP address of the gateway into the browsers’ address field.  
Two different addresses may be used to access the gateway. Either EMxxxxxx, where xxxxxx is the  
first six digits of the serial number, or WATxxxxxx, where xxxxxx is the last six digits of the gateways’  
MAC address. The MAC address is printed on a decal in the form xx:xx:xx:xx:xx:xx.  
7. Select the Gateway Setup Page. Enter User name ‘new’ and Password ‘user’ by default. The  
Password can be changed on the Security Configuration screen.  
8. Configure the Baud Rate and range of controllers’ addresses to match those you configured in step  
four.  
9. Click on Rescan Modbus Network  
10. Click on the back button of the browser to return to the previous page.  
11. Click on the refresh button of the browser and your controllers’ information should now be visible.  
Note: You must click on the refresh button within the browser to capture the latest controller information.  
This information is automatically refreshed after 10 seconds by default. You may change this refresh time  
using the appropriate page.  
Network Services  
The EM00-GATE-0000 supports DHCP client, autoIP, and static IP for address assignment. Normally you  
will not need to make any changes. The user is able to configure preferences as to which services are  
used if available. Intelligence is employed within the gateway to revert to backup IP assignment methods  
if the primary method is unavailable.  
The gateway does support DNS client and Netbios name resolution. Configuration information may be  
entered at the EM Gateway Network Display Setup page.  
Email Alarm Notification  
The email function allows the user to send emails to four addresses alerting them of alarm conditions that  
have occurred on the controllers connected to the Gateway. A button on the Graphical User Interface  
(GUI) allows the user to enable or disable this feature. Emails can be generated whenever an alarm  
condition occurs for each controller. An email acknowledge feature requires that the user acknowledge  
the email message by operating the email acknowledge button before additional email alarm messages  
can be generated for that controller. For multiloop controllers only one email acknowledge feature is  
supported; if more than one loop produces an alarm, only the first alarm detected will generate an email  
until acknowledged.  
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You will need to configure your Gateway with your SMTP server name or address. A DNS server address  
must also be configured if using a SMTP name. Contact your system administrator if you don’t know the  
SMTP name or address.  
Data Logging  
The gateway provides no explicit means of data logging. Data can be polled via Modbus TCP by an  
external PC program. Consider WatView from Watlow for your setup, data logging and graphing needs.  
Control Monitoring and Configuration  
The gateway provides a means of monitoring the current process value for analog inputs of each  
controller using a built-in HTTP server. It also provides a means of monitoring the present alarm status of  
each controller. Additionally, you may monitor and change control set points for control loops of each  
controller.  
The gateway is capable of supporting Watlow Series 96 non-ramping, 97, 981, 982, 988, 989, 998, 999,  
F4S, F4D, F4P, MicroDin, Power Series, CLS200and SD non-ramping controllers with up to 16  
controllers in any combination.  
The gateway is capable of automatically determining when a controller is connected to the serial bus. It  
will identify the model and address of each controller. Controllers with duplicate Modbus addresses will  
be ignored by the gateway.  
You can configure the baud rate of the EIA-485 or EIA-232 bus. You may also specify which controller  
addresses are scanned under the EM Gateway Setup page. The gateway supports from 1 to 16  
controllers in any combination of supported model numbers. Select Rescan Modbus Network to update  
the detection of controllers on the bus. The Modbus network is automatically scanned every two minutes  
for new devices.  
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Chapter Four  
HTML Pages  
The section describes the pages available from the EM Gateway’s Web server.  
When the web page is first accessed, you are prompted for a User name and Password. The default User  
name is ‘new’. The default Password is ‘user’. These are case sensitive. The user name and password  
may be changed on the security configuration page.  
F4  
1
2
Auto  
Hold  
1)  
2)  
1)  
2)  
Ok  
Ok  
Ok  
Ok  
100  
135  
78  
120  
136  
78  
Alarm 1 Ok  
Series 982  
Alarm 2 Ok  
Alarm 3 Ok  
This is the main page for monitoring the controllers on the Gateway. You can click on values that are located  
within a box. Entering in a new value may change these values. In addition, use Alarm Ack to clear alarms when a  
process value has returned within a safe operating range. Use the Email Ack to reactivate future emails for this  
controller. See the controller’s user’s manuals for details of Modes, Errors, and Alarm operation.  
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Use this page to disable or enable automatic page refreshing or to change the time in between  
refreshes.  
In addition, you can force a rescan of the Modbus Network. This will cause the Gateway to detect any  
new devices added to the serial network. Set the baud rate of the network to 9600 or 19200-baud. The  
value selected must match the value in all of the controllers on the serial network. Up to 16 controllers  
may be scanned by the Gateway using the built-in HTTP server. Set a start address to the lowest  
address number of the controller on the serial network. Set an end address to the highest address  
number of the controller on the serial network.  
As an example, you have your first controller set to address 23 and the last one set to 35. Set Start  
Address to 23 and End Address to 35. You can limit the number of controllers accessed by the  
Gateway by setting the Maximum Nodes value to less than 16.  
Lastly, this page provides links to Network Setup, Email Setup, Clock Setup, Network Statistics, and  
the Serial Statistics pages.  
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Use this page to change the Gateway identification name or to change the IP Address Resolution  
Method. Contact your IS administrator for questions regarding these settings.  
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Use this page to enable notification and configure the addresses for email recipients. These recipients  
will receive an email when an alarm occurs on any controller. Contact your IS administrator for  
questions regarding these settings.  
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Use this page to update the time and date stored in the Gateway. This information is used to identify  
the time and date of alarms when emails are sent.  
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1
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
0
0
0
1174  
1174  
1174  
1174  
1174  
1174  
1174  
1174  
1174  
1174  
1167  
1174  
1174  
1174  
1174  
1174  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
The Serial Statistic page is used to monitor the health of the controller network. These numbers will  
help identify when there are issues with wiring, duplicate Modbus ID addresses or noise on  
communication wires on the controller side of the network. In this example, controller number 11 is  
experiencing failure in communication quality.  
Timeout Errors increments anytime that a controller does not respond in an appropriate amount of  
time.  
Retry Errors increments anytime that a controller does not respond after 3 attempts to read  
information.  
CRC Errors increments anytime that the controller responds with a bad packet.  
Bad Polls increments when there are timeouts and the retries did not successfully retrieve information.  
Good Polls increments on each valid packet received.  
Illness increments anytime that there are 5 CRC or Timeout errors in a row. After a count of 5 in the  
Illness column, the controller is flagged as having no communication. On the next valid packet  
received, the Illness value is cleared to zero and communications is restored.  
You must refresh the browser to see these numbers update.  
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This page was loaded Wed Feb 1318: 00:28 2002  
IP Address  
Subnet  
Gateway  
Mac Address  
Receives  
Unicasts  
7.3.37.91  
255.255.224.0  
7.3.63.250  
00:03:AA:00:00:C1  
128349  
1207  
Multicasts  
0
Broadcasts  
127061  
Rx Errors  
0
Rx Missed  
2089  
Rx CRC Errors  
Rx Drops  
28  
0
Transmits  
1251  
Buffer Defers  
0
Tx Errors  
0
Tx Collisions  
0
Tx Coll. Overflow  
Tx FILO Errors  
Traffic Backoffs  
Network Rejects  
Address Rejects  
Protocol Rejects  
ARP Rejects  
0
0
0
84154  
25  
10492  
19361  
SMTP Server IP  
Send Queue Length  
Send Queue Max  
Send Queue Min  
Recv Queue Length  
Recv Queue Max  
Recv Queue Min  
Big Queue Length  
Big Queue Max  
Big Queue Min  
Little Queue Length  
Little Queue Max  
Little Queue Min  
0.0.0.0  
0
1
0
0
7
0
28  
30  
26  
28  
30  
2
The Network Statistics page monitors the health of the Ethernet network. These numbers will help identify  
settings for the EM Gateway as well as when there are issues with wiring, incorrect addresses or noise  
on communication wires on the Ethernet side of the Gateway.  
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Chapter Five  
Controller Parameters and Registers  
The EM Gateway supports the following parameters for each type of controller when using an HTTP  
browser:  
Series 96 – non-ramping  
Operation Mode – register 200 with choice of Auto or Manual as read only  
Input Error – register 101 with choice of Sensor Error or Ok as read only  
Process Value Input 1 – register 100 as read only  
Process Value Input 2 – register 105 as read only  
Auto Set Point 1 – register 300 as read/write  
Alarm Status Output 2 – register 106 with choice of Ok, Alarm High, Alarm Low, Alarm High Latched,  
Alarm Low Latched, Alarm High Silenced, Alarm Low Silenced, Alarm High Latched Silenced, Alarm  
Low Latched Silenced, Waiting for in Range Alarm, Alarm Disabled, or Alarm Error as read only  
Alarm Status Output 3 – register 106 with choice of Ok, Alarm High, Alarm Low, Alarm High Latched,  
Alarm Low Latched, Alarm High Silenced, Alarm Low Silenced, Alarm High Latched Silenced, Alarm  
Low Latched Silenced, Waiting for in Range Alarm, Alarm Disabled, or Alarm Error as read only  
Alarm Acknowledge – register 331 with choice to clear alarm as write only  
Note: Selecting Manual control using the Operation Mode, an input error or inputting a Set Point value  
less than –30000 will disable the Auto Set Point. Alarms not configured are not displayed. Alarms can not  
be acknowledged while the alarm condition exists.  
Series 97  
Process Value Input 1 – register 100 as read only  
Limit Status – register 319 with choice of Ok, High Limit, Low Limit, or Limit Error as read only  
Alarm Status Output 2 – register 106 with choice of Ok, Alarm High, Alarm Low or Alarm Error as read  
only  
Alarm Status Output 3 – register 110 with choice of Ok, Alarm High, Alarm Low, or Alarm Error as read  
only  
Alarm Acknowledge – register 331 with choice to clear alarm as write only  
Note: Alarms configured are displayed. Alarms can not be acknowledged while the alarm condition exists.  
Series 981 / 982  
Operation Mode – register 200 with choice of Hold, Run, or Pre-run as read only  
Input Error – register 209 with choice of Sensor Error or Ok as read only  
Process Value Input 1 – register 100 as read only  
Auto Set Point – register 300 as read/write  
Alarm Status Output 2 – register 106 with choice of Ok, Alarm High, Alarm Low or Alarm Error as read  
only  
Alarm Status Output 3 – register 110 with choice of Ok, Alarm High, Alarm Low, or Alarm Error as read  
only  
Alarm Acknowledge – register 106 with choice to clear alarm as write only  
Note: An input error or inputting Set Point values less than –30000 will disable the Auto Set Point. Alarms  
not configured are not displayed. Alarms can not be acknowledged while the alarm condition exists.  
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Series 988 / 989  
Operation Mode – register 10 with choice of Auto or Manual as read only  
Input Error – register 4 with choice of Sensor Error or Ok as read only  
Process Value Input 1 – register 1 as read only  
Process Value Input 2 – register 2 as read only  
Auto Set Point – register 7 as read/write  
Alarm Status Output 2/3 – register 3 with choice of Ok, Alarm High, Alarm Low or Alarm Error as read  
only  
Alarm Acknowledge – register 3 with choice to clear alarm as write only  
Note: Selecting Manual control using the Operation Mode, an input error or inputting Set Point values less  
than –30000 will disable the Auto Set Point. Alarms not configured are not displayed. Alarms can not be  
acknowledged while the alarm condition exists.  
Series 998 / 999  
Operation Mode – register 301 with choice of Auto or Manual as read only  
Input Error – register 209 with choice of Sensor Error or Ok as read only  
Process Value Input 1 – register 100 as read only  
Process Value Input 2 – register 104 as read only  
Auto Set Point 1 – register 300 as read/write  
Auto Set Point 2 – register 319 as read/write  
Alarm Status Output 3 – register 110 with choice of Ok, Alarm High, Alarm Low, or Alarm Error as read  
only  
Alarm Acknowledge – register 110 with choice to clear alarm as write only  
Note: Selecting Manual control using the Operation Mode, an input error or inputting Set Point values less  
than –30000 will disable Auto Set Points 1 or 2. Alarms not configured are not displayed. Alarms can not  
be acknowledged while the alarm condition exists.  
Series F4S / F4D  
Operation Mode – register 200 with choice of Auto or Manual as read only  
Input 1 Error – register 101 with choice of Sensor Error or Ok as read only  
Input 2 Error – register 105 with choice of Sensor Error or Ok as read only  
Input 3 Error – register 109 with choice of Sensor Error or Ok as read only  
Process Value Input 1 – register 100 as read only  
Process Value Input 2 – register 104 as read only  
Process Value Input 3 – register 108 as read only  
Auto Set Point 1 – register 300 as read/write  
Auto Set Point 2 – register 319 as read/write  
Alarm Status Output 2 – register 102 with choice of Ok, Alarm High, Alarm Low, Alarm High Latched,  
Alarm Low Latched, Alarm High Silenced, Alarm Low Silenced, Alarm High Latched Silenced, Alarm  
Low Latched Silenced, Waiting for in Range Alarm, Alarm Disabled, or Alarm Error as read only  
Alarm Status Output 3 – register 106 with choice of Ok, Alarm High, Alarm Low, Alarm High Latched,  
Alarm Low Latched, Alarm High Silenced, Alarm Low Silenced, Alarm High Latched Silenced, Alarm  
Low Latched Silenced, Waiting for in Range Alarm, Alarm Disabled, or Alarm Error as read only  
Alarm 1 Acknowledge – register 312 with choice to clear alarm as write only  
Alarm 2 Acknowledge – register 331 with choice to clear alarm as write only  
Note: Alarms configured are displayed. Alarms can not be acknowledged when the alarm condition still  
exists.  
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Series F4P  
Operation Mode – register 200 with choice of Auto or Manual as read only  
Input 1 Error – register 101 with choice of Sensor Error or Ok as read only  
Input 2 Error – register 105 with choice of Sensor Error or Ok as read only  
Input 3 Error – register 109 with choice of Sensor Error or Ok as read only  
Process Value Input 1 – register 100 as read only  
Process Value Input 2 – register 104 as read only  
Process Value Input 3 – register 108 as read only  
Auto Set Point – register 300 as read/write  
Alarm Status Output 2 – register 102 with choice of Ok, Alarm High, Alarm Low, Alarm High Latched,  
Alarm Low Latched, Alarm High Silenced, Alarm Low Silenced, Alarm High Latched Silenced, Alarm  
Low Latched Silenced, Waiting for in Range Alarm, Alarm Disabled, or Alarm Error as read only  
Alarm Status Output 3 – register 106 with choice of Ok, Alarm High, Alarm Low, Alarm High Latched,  
Alarm Low Latched, Alarm High Silenced, Alarm Low Silenced, Alarm High Latched Silenced, Alarm  
Low Latched Silenced, Waiting for in Range Alarm, Alarm Disabled, or Alarm Error as read only  
Alarm 1 Acknowledge – register 312 with choice to clear alarm as write only  
Alarm 2 Acknowledge – register 331 with choice to clear alarm as write only  
Note: Alarms configured are displayed. Alarms can not be acknowledged when the alarm condition still  
exists.  
MicroDIN  
Operation Mode – register 200 with choice of Auto or Manual as read only  
Input Error – register 101 with choice of Sensor Error or Ok as read only  
Process Value Input 1 – register 100 as read only  
Auto Set Point – register 300 as read/write  
Alarm Status Output 2 – register 106 with choice of Ok, Alarm High, Alarm Low, Alarm High Latched,  
Alarm Low Latched, Alarm High Silenced, Alarm Low Silenced, Alarm High Latched Silenced, Alarm  
Low Latched Silenced, Waiting for in Range Alarm, Alarm Disabled, or Alarm Error as read only  
Alarm Acknowledge – register 331 with choice to clear alarm as write only  
Note: Alarms configured are displayed. Alarms can not be acknowledged when the alarm condition still  
exists.  
Power Series  
Heat Sink Temperature in Degrees C - register 1590 as read only  
Load Current in Amps RMS on Line 1 - register 154 as read only (Based on configuration)  
Load Current in Amps RMS on Line 2 - register 164 as read only (Based on configuration)  
Load Current in Amps RMS on Line 3 - register 174 as read only (Based on configuration)  
Note: Display of current on lines 1, 2, and 3 depends on the number of zones, the installed options and  
the load type.  
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CLS200 Series (Loop 1 to 16 if available)  
Operation Mode – register 264 to 279 with choice of Auto or Manual as read only  
Input Error – registers 660 to 675 with choice of Ok, TC Reversed, TC Short, TC Open, RTD Open, or  
RTD Short as read only  
Process Value – registers 363 to 378 as read only  
Auto Set Point – registers 330 to 345 as read/write  
Alarm Status – registers 660 to 675 with choice of Ok, Low Deviation, High Deviation, Low Process, or  
High Process as read only  
Alarm Acknowledge – registers 8311 to 8326 with choice to clear alarm as write only  
Note: Alarms configured are displayed. Alarms can not be acknowledged when the alarm condition still  
exists.  
Note: The Communication Specifications manual list absolute registers, which are the relative register  
with 40001 added to them. As an example, relative register 264 is absolute register 40265.  
Series SD – non-ramping  
Operation Mode – register 25 with choice of Auto or Manual as read only  
Input Error – registers 24 with choice of Ok or Error as read only  
Process Value – registers 20, 21 as read only  
Auto Set Point – registers 27, 28 as read/write  
Alarm 1 Status – registers 29 and 30 of Alarm 1 Ok, Alarm 1 Low Alarm, or Alarm 1 High Alarm as read  
only  
Alarm 2 Status – always OK as this is the same output as communications.  
Alarm 3 Status – registers 33 and 34 of Alarm 3 Ok, Alarm 3 Low Alarm, or Alarm 3 High Alarm as read  
only  
Note: Alarms configured are displayed. Alarms can not be acknowledged when the alarm condition still  
exists.  
In addition, the Series SD has many other parameters to read or change by clicking on the link  
SeriesSD. Be sure to submit any changes made on these screens using the Submit button at the bottom  
of the screen.  
The following are screen captures from the Series SD:  
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Chapter Six  
Reference Documents  
The MODBUS RTU specification is located at: http://www.modicon.com/techpubs/toc7.html or  
Serial Numbers  
Gateways are labeled with a unique serial number in numeric and bar code formats. The serial number is  
embedded in the gateway firmware.  
EM Gateway Features and Benefits  
Ethernet/Internet connectivity  
Operate & monitor your process remotely.  
Browser Graphical User Interface (GUI)  
Operate & monitor your process remotely with standard Web browsers.  
Dedicated Web page design  
Easy to understand and operate  
Email alarm notification  
Reduced process monitoring costs  
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Chapter Seven  
Specifications  
Power supply  
Voltage input 24 V (ac/dc) +10%, -15% 50/60 Hz +/- 5  
Connection through 2-position removable screw style terminal block  
22 to 12 AWG  
Power consumption 10 VA MAX  
UL Approved, Class 2 power supply required  
Real-time Clock backed by 3v-lithium battery – RAYOVAC BR1225  
Environmental  
Operating temperature range:  
Storage temperature range:  
Operating and storage humidity: 0 to 90% non-condensing  
0 to 60°C  
-40 to 70°C  
Indication  
Green LED for Ethernet connection  
Green LED for Ethernet activity  
Green LED for EIA-485 or EIA-232 activity  
Agency  
CE Approved, see Declaration of Conformity 61326 Industrial Immunity, Class B Emissions  
Communications  
MODBUS RTU communications  
Both EIA-485 and EIA-232 supported at 9600 and 19200 baud  
Connection through 5-position removable screw style terminal block  
22 to 12 AWG  
Ethernet communications  
Ethernet RJ45 Connector  
10BaseT per IEEE 802.3 Ethernet Standard  
HTTP v1.1  
Modbus TCP  
DHCP, Auto IP, Or Fixed IP Address  
Email Alarm Notification  
Supports Windows browsers  
Microsoft Internet Explorer 4.0 or newer  
Netscape 4.0 or newer  
Control Output Signals  
Activity L.E.D. for Ethernet communications per IEEE 802.3  
Activity L.E.D. for Serial communications.  
Enclosure Size  
Dimensional Size - L: 3.75 in X W: 1 in X H: 2.5 in, with cutouts for L.E.D.s, RJ45 port and power jack.  
User Interface  
3 L.E.D.s to indicate operation status; Ethernet link, Ethernet traffic and Modbus traffic.  
Ordering Information  
Order part number EM00-GATE-0000  
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Declaration of Conformity  
Gateway Products  
Watlow Winona, Inc.  
1241 Bundy Blvd.  
Winona, MN 55987 USA  
Declares that the following product:  
Model Numbers:  
Classification:  
EM00-GATE-0000, NGW0-0000-2400 and NGW0-0000-0000*  
Communications interface card, Installation Category I, Pollution  
degree II  
Rated Voltage:  
Rated Frequency:  
Rated Power:  
24V (ac or dc) or 5V (dc)  
50/60 Hz or dc  
10VA maximum  
*NGW0-0000-0000 Requires use of a Ferrico NF130 Clamp on ferrite on all lines to pass Class B  
emissions. Depending on end use setup, this bead may or may not be necessary.  
Meets the essential requirements of the following European Union Directives by using the relevant  
standards show below to indicate compliance.  
89/336/EEC Electromagnetic Compatibility Directive  
EN 61326:1997 With A1:1998 – Electrical equipment for measurement, control and  
laboratory use – EMC requirements (Industrial Immunity, Class B Emissions).  
EN 61000-4-2:1996 With A1, 1998 – Electrostatic Discharge Immunity  
EN 61000-4-3:1997 – Radiated Field Immunity  
EN 61000-4-4:1995 – Electrical Fast-Transient / Burst Immunity  
EN 61000-4-5:1995 With A1, 1996 – Surge Immunity  
EN 61000-4-6:1996 – Conducted Immunity  
EN 61000-4-11:1994 Voltage Dips, Short Interruptions and Voltage Variations Immunity  
EN 61000-3-2:1995 With A1-3:1999 – Harmonic Current Emissions  
EN 61000-3-3:1995 With A1:1998 – Voltage Fluctuations and Flicker  
Use of an appropriately approved class 2 power source is required for compliance.  
Jim Boigenzahn  
Winona, Minnesota, USA  
Name of Authorized Representative  
Place of Issue  
General Manager  
Title of Authorized Representative  
February 28, 2002  
Date of Issue  
Signature of Authorized Representative  
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How to Reach Us  
Technical Assistance  
If you encounter a problem with your EM Gateway, review all of your wiring and configuration information  
to verify that your selections are consistent with your application. If the problem persists after checking  
the above, you can get technical assistance from your local Watlow representative, or by dialing (507)  
454-5300. An applications engineer will discuss your application with you.  
Warranty  
This product is warranted free from defects in material and workmanship for 36 months after delivery to  
the first purchaser for use, providing that the units have not been misapplied. Since Watlow has no  
control over their use, and sometimes misuse, we cannot guarantee against failure. Watlow’s obligations  
hereunder, at Watlow’s option, are limited to replacement, repair or refund of purchase price, and parts  
that upon examination prove to be defective within the warranty period specified. This warranty does not  
apply to damage resulting from transportation, alteration, misuse or abuse.  
Returns  
Call or fax Customer Service for a Return Material Authorization (RMA) number before returning any  
product.  
Put the RMA number on the shipping label, and provide a written description of the problem.  
A restocking charge of 20% of the net price is charged for all standard units returned to stock.  
Your Feedback  
Your comments or suggestions on this manual are welcome, please send them to: Technical Writer,  
Watlow Winona, 1241 Bundy Blvd., P.O. Box 5580, Winona, MN 55987-5580, Phone: (507) 454-5300,  
Fax: (507) 452-4507. Watlow Winona, Inc., ©, copyrights the EM User’s Manual February 2002, with all  
rights reserved. (2206)  
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