24 • XR75CX I&O Manual 026-1210 Rev 0 09-FEB-2011
3. Press + to open the Serial tab of the
General Controller Info setup screens:
4. This screen will have a “Connection” field
for all COM ports on the E2. Highlight the
COM port connection field that will be used
for the device, and press - LOOK UP.
From the list of network types, select MOD-
BUS.
5. Four fields will become visible underneath
the COM port connection field, which pertain
to the way the device communicates:
• Baud - Default setting is 19.2k. The baud rate set-
ting should be set to match the baud rate of the
XR75CX device (9600). (All devices connected to
the same COM port should be set to the same baud
rate.)
• Data Size - Leave this field at the default value (8).
• Parity - Leave this field at the default value (None).
• Stop Bits - Leave this field at the default value (1).
6. Press
to save changes and exit.
18.1.2.Add and Connect the Device
To enable communications between E2 and the
XR75CX units, the devices must be added and ad-
dressed in E2.
1. Log in to the E2 with Level 4 access.
2. Press
- Connected I/O
Boards and Controllers.
3. In the Num Network Ctrls: NetSetup screen,
under the ECT tab, enter the number of de-
vices in the Quantity field. (Max shows the
maxium number of devices allowed on the
network.)
4. Press
to return to the Network Setup
menu, then select
- Network Summary.
5. Locate the units you added to the network list
(press
and to scroll through the list). If
desired, enter a new name for each device in
the Name field.
6. By default, each device in the network list has
a board number of 0. To set the address and
begin communication, choose the device and
press . In the list of MODBUS devices,
Figure 18-3 - Serial Communications Manager Screen
Figure 18-4 - Num Network Ctrls: NetSetup Screen
Figure 18-5 - Network Summary Screen
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