Siemens SIMATIC MV540 S - SIMATIC MV500 Command Preconditions

Process interfacing via an automation system (PLC, PC)
9.3 Control with Ident profile
SIMATIC MV500
124 Operating Instructions, 06/2018, C79000-G8976-C494-01
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
IO
∼ ☑ ☑ ☑
Read program
number
∼ ∼ ∼ CM or
PROFINET
IO
∼ ☑ ∼ ∼
Write match
string
∼ ∼ ∼ CM or
PROFINET
IO
∼ ☑ ☑ ☐
Read match
string
∼ ∼ ∼ CM or
PROFINET
IO
∼ ☑ ☑ ☐
Set DISA bit ∼ ∼ ∼ CM or
PROFINET
IO
∼ ☑ ∼ ∼
Reset DISA bit ∼ ∼ ∼ CM or
PROFINET
IO
∼ ☑ ∼ ∼
Set digital out ~ ~ ~ CM or
PROFINET
IO
~ ~ ~ ~
Read result ∼ ∼ CM or
PROFINET
IO
∼ ∼ ☑ ☑ ☐
Trigger + read
result string
CM or
PROFINET
IO
∼ CM or
PROFINET
IO
∼ ∼ ☑ ☑ ☐
Acknowledge
group error
∼ ∼ ∼ CM or
PROFINET
IO
∼ ☐ ☐ ☐
∼
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;
otherwise, select CM.
The "Trigger source", "Result", "Result text" and "Control" columns can be configured using
the WBM ("Settings > Communication > Use > Connection").