Siemens SIMATIC S7-200 System Manual page 298

S7-200 Programmable Controller System Manual
POSx_CFG Instruction
The POSx_CFG instruction (Reload Configuration)
commands the Position module to read the configuration
block from the location specified by the configuration/profile
table pointer. The Position module then compares the new
configuration with the existing configuration and performs
any required setup changes or recalculations.
Turning on the EN bit enables the instruction. Ensure that
the EN bit stays on until the Done bit signals that the
execution of the instruction has completed.
Turning on the START parameter sends a CFG command to
the Position module. For each scan when the START
parameter is on and the Position module is not currently
busy, the instruction sends a CFG command to the Position
module. To ensure that only one command is sent, use an
edge detection element to pulse the START parameter on.
The Done parameter turns on when the module completes
this instruction.
The Error parameter contains the result of this instruction. See Table 9-20 for definitions of the
error codes.
Table 9-19 Parameters for the POSx_CFG Instruction
Inputs/Outputs
START
Done
Error
284
Data Type Operands
BOOL I, Q, V, M, SM, S, T, C, L, Power Flow
BOOL I, Q, V, M, SM, S, T, C, L
BYTE IB, QB, VB, MB, SMB, SB, LB, AC, *VD, *AC, *LD