Siemens SIMATIC MV500 Operating Instructions Manual page 163

Table 9- 19
Address
0x0000
Command: Reset DISA bit
The command data to be "written" in the "PHYSICAL WRITE" command only contains the
command identifier "Reset DISA bit".
If the "DISA" bit of the optical reader has been reset, the command receives positive
acknowledgment. If it was already reset, this command has no effect but is nevertheless
positively acknowledged.
The "PHYSICAL WRITE" command must specify the length "0x01" ("CMD_STRUCT.Length =
0x01"); otherwise, the command receives a negative acknowledgment.
Table 9- 20
Parameter
CMD
OffsetBuffer
UID
Length
StartAddress
Table 9- 21
Address
0x0000
Command: Set digital out
Writing command data
The command data to be "written" in the "PHYSICAL WRITE" command contains the command
identifier and six parameters.
With this command, the four logical signals "EXT_1", "EXT_2", "EXT_3" and "EXT_4" can be set
and linked to other logical signals. These signals can only be set through an automation
system. In addition, these signals can be applied to the available digital output pins via the
WBM.
Receipt of this command is logged in the diagnostics data records. If the command contains
an invalid parameter, a negative acknowledgement is sent.
SIMATIC MV500
Operating Instructions, 03/2021, C79000-G8976-C494-05
Memory area of the receive data (TXREF or RXREF)
Value
0x05
CMD_STRUCT
Value
0x71
0x00
0x00
0x01
0x00
Memory area of the receive data (TXREF or RXREF)
Value
0x06
Process interfacing via an automation system (PLC, PC)
Meaning
Command identifier
"Set DISA bit"
Meaning
Command identifier
"Reset DISA bit"
9.3 Control with Ident profile
163