Siemens SIMATIC ET 200S Operating Instructions Manual page 216

1Count5V
3.9 Position feedback
Table 3- 23 Control Interface (Outputs)
Address Designation
Bytes 0 to 3
Byte 4 EXTF_ACK
RES_STS
CTRL_SYN
SW_GATE
Byte 5
LOAD_PREPARE
LOAD_VAL
Bytes 6 to 7
Not used for modified user interface
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Notes on the Control Bits
Table 3- 24 Notes on the Control Bits
Control bits Notes
CTRL_SYN You use this bit to enable synchronization.
EXTF_ACK Error acknowledgment
The error bits must be acknowledged with the EXTF_ACK control bit after the cause is removed.
LOAD_PREPARE Load counter preparatory
The value from bytes 0 to 3 is applied as the load value.
LOAD_VAL The value from bytes 0 to 3 is loaded directly as the new count value.
RES_STS Start resetting of status bit
The status bits are reset by means of the acknowledgment process between the RES_STS bit and
the RES_STS_A bit.
SW_GATE SW gate control bit
The SW gate is opened/closed by means of the control interface with the SW_GATE bit.
216
Assignment
Load value direct, preparatory, comparison value 1 or 2
Bit 7: Error diagnostics acknowledgment
Bit 6: Reserve = 0
Bit 5: Reserve = 0
Bit 4: Reserve = 0
Bit 3: Reserve = 0
Bit 2: Start resetting of status bit
Bit 1: Enable synchronization
Bit 0: SW gate control bit
Bit 7: Reserve = 0
Bit 6: Reserve = 0
Bit 5: Reserve = 0
Bit 4: Reserve = 0
Bit 3: Reserve = 0
Bit 2: Reserve = 0
Bit 1: Load counter preparatory
Bit 0: Load counter direct
Reserve = 0
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Technological Functions
Operating Instructions, 06/2010, A5E00124867-07