Siemens SIMATIC RF185C Operating Instructions Manual page 195

Parameter assignment with the "HW_Connect" variable:
● SIMATIC RF180C
When you establish the connection via an S7-1200/-1500 controller, enter the value "2x
RS422 channel_1" in the "HW_ID" parameter of the module.
In the "CM_CHANNEL" parameter, enter the value "1" for channel 1 and the value "2" for
channel 2.
In the "LADDR" parameter, enter the value "2x RS422 channel_1" in the start address of
the module.
● SIMATIC RF18xC
When you establish the connection via an S7-1200/-1500 controller, enter the
corresponding module in the "HW_ID" parameter.
Always enter the value "1" in the "CM_CHANNEL" parameter.
In the "LADDR" parameter, enter the start address of the corresponding module.
STEP 7 migration
To migrate an RF180C communication module to an RF18xC, proceed as follows:
1. Open your existing project.
2. Open the device configuration and replace the respective RF180C communication
module with an RF18xC communication module in the "Devices & networks" folder.
3. Apply the module parameters of the RF180C for each reader module of the RF18xC.
4. Assign parameters to the RF18xC communication module.
– Parameter assignment with the technology object:
– Parameter assignment with the "HW_Connect" variable:
SIMATIC RF185C, RF186C, RF188C, RF186CI, RF188CI
Operating Instructions, 04/2020, C79000-G8976-C512-03
In the technology objects, replace the RF180C modules with the corresponding reader
modules of the RF18xC.
Adapt the "CM_CHANNEL" and "LADDR" parameters in the "HW_CONNECT"
variable. When you establish the connection via an S7-1200/-1500 controller, you
must also adapt the "HW_ID" parameter.
A.4 Compatibility with SIMATIC RF180C
Appendix
195