Yaskawa Ladder Works Programming Manual Uživatelský manuál stáhnout pdf (Strana 201)

9.8 Receive Message Function (MSG-RCV)

9-26

■ Status (PARAM01)

Output the status of the transmission unit. See 5.5.1."Parameters" of "Status (PARAM01)" for

details.

■ Called Station # (PARAM02)

The station number of sending side is output.

■ Function Code (PARAM04)

Output the MEMOBUS function code received. Refer to Table 9.13.

Table 9.13 Function Codes

Function Code Setting

00H Unused ×

01H Read coil status

○

02H Read input relay status

○

03H Read contents of holding register

○

04H Read contents of input register ○

05H Change status of single coil

○

06H Write into a single holding register

○

07H Unused

08H Loop-back test ○

09H Read contents of holding register (expanded)

○

0AH Read contents of input register (expanded)

○

0BH Write into holding register (expanded)

○

0CH Unused ×

0DH Discontinuous readout of holding register (expanded)

○

0EH Discontinuous write into holding register (expanded)

○

0FH Change status of a multiple coil

○

10H Write into a plurality of holding register ○

11H to 20H Unused

21H to 3FH System reserved

40H to 4FH System reserved

50H to Unused ×

Note :

The MB, MW, IB, and IW registers can be used respectively as the coil, holding register,

input relay, and input registers during slave operation.

■ Data Address (PARAM05)

The data address requested by the sending side is output.

■ Data Size (PARAM06)

The data size (number of bits or number of words) of the requested read or write is output.

■ Called CPU # (PARAM07)

The called CPU NO. is output.

■ Coil Offset (PARAM08)

Set the offset word address of the coil. This is valid in the case of function codes 01H, 05H, and

0FH.

1 2 ... 196 197 198 199 200 201 202 203 204 205 206 ... 219 220

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