Table 2-27 Notes On The Feedback Bits; Table 2-28 Access To The Control And Feedback Interface In Step 7 Programming - Siemens SIMATIC ET 200S Operating Instructions Manual

1Count24V/100kHz
2.8 Position Detection
Notes on the Feedback Bits
Table 2-27 Notes on the Feedback Bits
Feedback bits Notes
ERR_24V Short circuit of the encoder supply
The error bit must be acknowledged by the EXTF_ACK control bit (see figure below)
Diagnostic message if assigned.
ERR_LOAD Load function error (see figure below)
The LOAD_VAL, LOAD_PREPARE, CMP_VAL1, CMP_VAL2, and C_DOPARAM bits cannot be set
simultaneously during transfer. This results in setting the ERR_LOAD status bit, similar to loading an
incorrect value (which is not accepted).
ERR_PARA Parameter assignment error ERR_PARA
RES_STS_A Resetting of the status bits active (see figure below)
STS_C_DN Down direction status
STS_C_UP Up direction status
STS_DI DI status
The status of the DI is indicated in all modes with the STS_DI bit in the feedback interface.
STS_GATE Internal gate status: Counting
STS_LOAD Load function running (see figure below)
STS_ND Zero-crossing in the count range when counting without a main counting direction. The bit must be
reset by the RES_STS control bit.
STS_OFLW High counting limit violated
STS_UFLW Low counting limit violated
Both bits must be reset.
STS_SYN Synchronization status:
After successful synchronization, the STS_SYN bit is set. It must be reset by the RES_STS control
bit.
Access to the Control and Feedback Interface in STEP 7 Programming
Table 2-28 Access to the Control and Feedback Interface in STEP 7 Programming
Feedback interface
Control interface
Load and transfer commands are also possible with CPU 3xxC, CPU 3xx with MMC, CPU 4xx (V3.0 and later), and
1
WinLC RTX (PC CPU).
100
Configuring with STEP 7
using the GSD file
1)
(Hardware catalog\PROFIBUS-DP\Additional
FIELD DEVICES\I/O\ET 200S)
Read with SFC 14 "DPRD_DAT"
Write with SFC 15 "DPWR_DAT"
Configuring with STEP 7
using HW Config
(Hardware catalog\PROFIBUS-
DP\ET 200S)
Load command (e.g. L PID)
Transfer command (e.g. T PQD)
Technological Functions
Operating Instructions, 02/2007, A5E00124867-05