Siemens SIMATIC S7-1200 - Page 1133

Communication processor and Modbus TCP
13.3 Point-to-point (PtP) communication
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
1133
Table 13- 40 Data types for the parameters
Parameter and type
Data type
Description
REQ IN Bool Activate the configuration change on the rising edge of this input.
(Default value: False)
PORT IN PORT After you install and configure a CM or CB communication device,
the port identifier appears in the parameter helper drop-list available
at the PORT box connection. The assigned CM or CB port value is
the device configuration property "hardware identifier". The port sym-
bolic name is assigned in the "System constants" tab of the PLC tag
table. (Default value: 0)
EN_MODBUS_CRC IN Bool Enable MODBUS CRC generation and checking:
• 0: CRC calculation tuned OFF (default)
• 1: CRC calculation turned ON
Note: Only V2.1 CMs, V4.1 CPUs with CBs, and CM PtP modules for
distributed I/O support this parameter.
EN_DIAG_ALARM IN Bool Enable diagnostic alarm generation:
• 0: Diagnostic alarm turned OFF
• 1: Diagnostic alarm turned ON (default)
EN_SUPPLY_VOLT IN Bool Enable diagnostics for missing supply voltage L+:
• 0: Supply voltage diagnostic disabled (default)
• 1: Supply voltage diagnostic enabled
DONE
OUT
Bool
Indicates that set features is done
ERROR OUT Bool TRUE for one scan, after the last request was completed with an
error
STATUS
OUT
Word
Execution condition code (Default value: 0)