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11.1.5
I/O interface of function block
The following scale parameters are available cyclically in the data block in the controller
without special reading of data records or can be sent to the scale without sending of data
records:
Table 11- 2
I/O data of function block
Parameter (read)
SCALE_STATUS_1 (UINT)
SCALE_STATUS_2 (UINT)
PROCESS_VAL_1 (REAL)
PROCESS_VAL_2 (REAL)
OPERATION_ERRORS
TECHNOLOGICAL_ERRORS
DATA_CMD_ERROR_1
DATA_CMD_ERROR_2
DATA_CMD_ERROR_3
DATA_CMD_ERROR_4
PROCESS_VAL_1 (DWORD)
PROCESS_VAL_2 (DWORD)
Parameter (write)
TARE_VALUE (REAL)
ANA_OUTPUT (REAL)
DIGIT_OUTPUT (UINT)
SIWAREX WP231
Manual, 07/2014, A5E31238908A-02
11.1 Integration in SIMATIC S7-1200
Meaning
Bytes 0 & 1 of the scale status (see data record 30)
Bytes 2 & 3 of the scale status (see data record 30)
Scale value in accordance with selection in data record 14
Scale value in accordance with selection in data record 14
Operating error according to Message list (Page 134)
Technological errors according to Message list (Page 134)
Data command error according to Message list (Page 134)
Data command error according to Message list (Page 134)
Data command error according to Message list (Page 134)
Data command error according to Message list (Page 134)
Scale value in accordance with selection in data record 14
Scale value in accordance with selection in data record 14
Tare specification from S7 I/O
(enabled by command 1016)
Specification for analog output if this has assigned "S7 interface" as
source in data record 7.
Specifications for digital outputs if these have been assigned as
function "S7 interface" in data record 7.
Communication
151
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