Process interfacing via an automation system (PLC, PC)
10.3 Control with FB 45 and Ident profile
SIMATIC MV420 / SIMATIC MV440
258 Operating Instructions, 04/2013, A5E02371045-06
Command: Set digital out
Writing command data
The command data to be "written" in the 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 via an automation
system.
● These signals can also be applied to the available digital output pins using adjustment
support.
● Receipt of this command is logged in the diagnostics data records. If the command
contains an invalid parameter, a negative acknowledgement is sent.
● The WRITE command must specify a length of "0x7" ("MOBY_CMD Length" or
"PIB_COMMAND Length" = 0x7), otherwise a negative response will be sent.
Table 10- 28 Moby_CMD
Command
[hex]
Sub_
Command
[hex]
Length
[dez]
Address_
MDS [hex]
DAT_DB_num
ber
[dez]
DAT_DB_addr
ess
[dez]
Number of the
data DB (for
example 48)
Pointer to the
start word
(for example 0)
01 - 7 0
Pointer to the user data to be
sent to the reader.
Table 10- 29 PIB_COMMAND
Parameter Value
CMD 0x71
OffsetBuffer 0x00
UID 0x00
Length 0x07
StartAddress 0x00
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