Siemens simatic et 200s Operating Instructions Manual page 237

Assignment of the Feedback Interface
Address Assignment
Byte 0 Bit 7: ERR_ENCODER
Bit 6: STATUS DO 2
Bit 5: STATUS DO 1
Bit 4: STATUS DO 0
Bit 3: SYNC
Bit 2: POS_ DONE
Bit 1: POS_ERR
Bit 0: POS_ACK
Bytes 1 to 3 Actual value
Byte 4 Bit 7: ERR_2L+
Bit 6: STATUS DI 2 Latch signal
Bit 5: STATUS DI 1 limit switch plus
Bit 4: STATUS DI 0 limit switch minus
Bit 3: Reserve
Bit 2: LATCH_DONE
Bit 1: JOB_ERR
Bit 0: JOB_ACK
Bytes 5 to 7 Feedback value
Access to Control and Feedback Interface in STEP 7 Programming
Feedback interface
Control interface
Load and transfer commands are also possible with CPU 3xxC, CPU 318-2 (as of V3.0), CPU 4xx (as of V3.0)
1)
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
Configured with STEP 7 via GSD file
(hardware catalog\PROFIBUS DP\ other field
devices\ET 200S)
Read with SFC 14 "DPRD_DAT"
Write with SFC 15 "DPWR_DAT"
5.9 Control and Feedback Signals
Configured with STEP 7 via HW Config
1)
(hardware catalog\PROFIBUS DP\ET 200S)
Load command e.g. L PED
Transfer command e.g. T PAD
1PosSSI/Digital
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