2
0
1
7
-1
2
12
Commissioning
Data exchange mode
The interface module must be in data exchange mode, so that data exchange between the RS
485 side (the WCS readers) and the DeviceNet bus can occur. This mode is always active
when the interface module is not in configuration or test mode. In data exchange mode, the
interface module will run the installed script.
4.4
Connecting the WCS Reader
If you install several WCS readers together on one interface module, the WCS readers must
have different addresses. This will allow the programmable logic controller to allocate the data
to the correct WCS readers. If you only connect one WCS reader on an interface module, this
WCS reader always receives the address 0. You can connect up to 4 WCS readers to an
interface module via an RS 485 cable. The supplied default address of each WCS reader is 0.
Refer to the configuration instructions for the WCS reader if you need to change the address of
the WCS reader.
Setting the number of connected WCS readers
Set the number of connected WCS readers with the rotary switch S4 in accordance with the
table "Rotary switch S4".
Rotary switch S4
WCS reader terminal pin
Interface module
terminal
WCS2A
WCS3A
WCS3B
2
1
1
X2-1
4
2
2
X1-4
1
3
4
X1-5
3
5
3
X2-2
Table 4.5
Connecting the WCS reader(s)
Switch setting S4
Number of WCS readers
Addresses
1
1 WCS reader
Address 0
2
2 WCS readers
Address 0, 1
3
3 WCS readers
Address 0, 1, 2
4
4 WCS readers
Address 0, 1, 2, 3
Table 4.6
Position of rotary switch S4 for setting the number of WCS readers
Note!
Rotary switch S5
Rotary switch S5 has no function. Always set rotary switch S5 to position 0.
