Programming via SIMATIC controller
8.7 Digital inputs/outputs
SIMATIC RF650R/RF680R/RF685R
Configuration Manual, 03/2018, C79000-G8976-C386-06
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8.7
Digital inputs/outputs
There are 4 digital inputs/outputs available on the reader. The outputs can be configured in
the WBM. You will find more information on this in the section "The "Settings - Digital
outputs" menu item (Page 72)". The request and control are via the controller. You can
control the addresses of the inputs/outputs via a 1-WORD subsegment of the process image
of the reader/CM. You can enter the addresses using STEP 7 or Studio 5000 Logix Designer
in the properties of the reader in the parameter "Digital inputs/outputs". You can access the
digital inputs/outputs via the byte with the lower value address.
The structure of this byte and the assignment to the digital inputs/outputs is shown below:
Table 8- 38 Assignment of the digital inputs/outputs
Bit
3
2
1
0
Input byte
DI 3
DI 2
DI 1
DI 0
Output byte
DO 3
DO 2
DO 1
DO 0
All other bits of the input/output byte are reserved.
