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SIMATIC STEP 7
ROGRAMMING IN
If a processing error occurs for FB SIWA_FTC, we have to assume that the
variables that have been output do not correspond with the actual status in the
module.
8.4.21 START_UP:= "DB_SCALE".bo_START_UP_IN_PROGRESS
Communication between the SIWAREX FTC and the FB SIWA_FTC is
synchronized when the SIWAREX FTC module is restarted (normally when the
SIMATIC CPU is started). The bit can be output for more than one cycle.
8.4.22 CMD_EN:= "DB_SCALE".bo_CMD_ENABLE
After entering the command number in the CMD_IN:= "DB_SCALE".i_CMD_INPUT
variable, the execution of the command is triggered with this bit. To prevent the
command from being triggered more than once, the bit should be created as an
After execution of the command, the FB SIWA_FTC resets the trigger
edge.
variable
CMD_EN:= "DB_SCALE".bo_CMD_ENABLE
8.4.23 ERR_MSG_Q:= "DB_SCALE".bo_ERR_MSG_QUIT
After evaluating a message with variable ERR_MSG_C:=
"DB_SCALE".b_ERR_MSG_CODE, the user acknowledges this message. FB
SIWA_FTC can then output the next message.
8.5 Allocation of the Scale DB
There are variables that are available in the SIMATIC in the scales DB.
The allocation corresponds with the data record structure. The variable designation
is in English.
SIWAREX FTC
8-117
.
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