Siemens SIMATIC MV500 - 9.3.2.6 Preconditions for the commands

Process interfacing via an automation system (PLC, PC)
9.3 Control with Ident profile
SIMATIC MV500
Operating Instructions, 03/2021, C79000-G8976-C494-05
169
9.3.2.6 Preconditions for the commands
If you want to issue a command, make sure that the preconditions are met. If the
preconditions are not met, the command receives a negative acknowledgment. The following
table provides an overview of the requirements that must be fulfilled.
Table 9- 32 Overview of preconditions to be met
Command Trigger
source
Result
(binary)
Result
string
Control DISA No group
error
Processing
mode
Stop mode
Program
change (write
program num-
ber)
∼
∼
∼
CM or
PROFINET I
O
∼
☑
☑
☑
Read program
number
∼
∼
∼
CM or
PROFINET I
O
∼
☑
∼
∼
Write match
string
∼
∼
∼
CM or
PROFINET I
O
∼
☑
☑
☐
Read match
string
∼
∼
∼
CM or
PROFINET I
O
∼
☑
☑
☐
Set DISA bit
∼
∼
∼
CM or
PROFINET I
O
∼
☑
∼
∼
Reset DISA bit
∼
∼
∼
CM or
PROFINET I
O
∼
☑
∼
∼
Set digital out
~
~
~
CM or
PROFINET I
O
~
~
~
~
Read result
∼
∼
CM or
PROFINET I
O
∼
∼
☑
☑
☐
Trigger + read
result string
CM or
PROFINET I
O
∼
CM or
PROFINET I
O
∼
∼
☑
☑
☐
Acknowledge
group error
∼
∼
∼
CM or
PROFINET I
O
∼
☐
☐
☐
∼
Selection is unimportant.
☑
State must be satisfied.
☐
State is not permitted.
CM
If the IP mode "PROFINET (Ident profile)" is set, you must select PROFINET IO; oth-
erwise, select CM.
The "Trigger source", "Result", "Result text" and "Control" columns can be configured using the
WBM ("Settings > Communication > Use > Connection").