Siemens S7-1200 System Manual page 701

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Table of Contents

Table 12- 32 Data types for parameters

Parameter and type

Table 12- 33 Condition codes

STATUS (W#16#....)

S7-1200 Programmable controller

System Manual, 03/2014, A5E02486680-AG

Start the set RS232 signals operation, on the rising edge of this input

(Default value: False)

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 symbolic name is

assigned in the "System constants" tab of the PLC tag table. (Default

Selects which signal to set: (multiple allowed). Default value: 0

01H = Set RTS

02H = Set DTR

04H = Set DSR

Request to send, module ready to send value to set (true or false),

Default value: False

Data terminal ready, module ready to send value to set (true or false).

Default value: False

Data set ready (only applies to DCE type interfaces), not used.

TRUE for one execution after the last request was completed with no

TRUE for one execution after the last request was completed with an

Execution condition code (Default value: 0)

CM or CB is RS485 and no signals can be set

Signals cannot be set because of Hardware flow control

Cannot set DSR because module is DTE

Cannot set DTR because module is DCE

Communication processor and Modbus TCP

12.3 Point-to-point (PtP) communication