Gpsend (General-Purpose Communication Sending Instruction) - Panasonic AFP7CPS4E User Manual

9.3.3 GPSEND (General-Purpose Communication Sending Instruction)

 Instruction format
Items Settings
i Specify the operation unit.
S Specify the header of the source node data area.
n Specify the No. of sent bytes.
Specify the device area in the source node to save the execution
D
result (one word).
(Note 1) When a K constant (integer with a symbol) is specified for the No. of sent bytes [n], select SS for operation
unit [i]. When a U constant (integer without a symbol) or an H constant (hexadecimal integer), select US for
operation unit [i].
(Note 2): Device that can be specified for S are: WX, WY, WR, WL, DT, LD.
(Note 3) If a negative value is specified, the end code is not automatically added to the sent data. (Where SCU is
targeted)
(Note 4): Device that can be specified for D are: WX, WY, WR, WL, DT, LD.
Once the sending process is completed, the sent bytes are saved. When an error occurs, "FFFFH" is saved.
KEY POINTS

Specify the port targeted for communication, using UNITSEL instruction
immediately before GPSEND instruction.

Maintain the ON conditions for GPSEND instruction until sending is
completed and the general-purpose communication sending active flag (Y8,
Y9, YA, YB) turns OFF.

Confirm that the "General-purpose communication Clear to send flag" for
the targeted COM port has turned ON, and execute GPSEND instruction.

When GPSEND instruction is executed for a communication port in the
sending process, the sending active flag and the sending result are updated.

GPSEND instruction cannot be used in an interrupt program.
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9.3 Sending Operation
Setting range
US / SS (Note 1)
(Note 2)
1 to 4094, -1 to -4096
(Note 1) (Note 3)
(Note 4)
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