2 how to determine slave cpu synchronous state, 1 ) how to check with a master side application, 2 ) how to check with a slave side application – Yaskawa MP2300S Basic Module User Manual

Page 293

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7.3 Operation

7.3.2 How to Determine Slave CPU Synchronous State

7-15

Slave CPU Synchronous Function

7.3.2 How to Determine Slave CPU Synchronous State

The way to determine the slave CPU synchronous state from an application program is as follows:

( 1 ) How to Check with a Master Side Application

Use bit 7 “SYNC” of the second word “Slave Status” (IW†††† + 1) of an input register assigned to MP2300S.

If SYNC = ON, it is in a slave CPU synchronous state.

( 2 ) How to Check with a Slave Side Application

Use bit7 “SYNC” of the second word “Slave Status” (IW†††† + 1) of an input register assigned to a local station.

If SYNC = ON, it is in a slave CPU synchronous state.

bit7

Bit6

bit5

bit4

bit3

bit2

bit1

bit0

SYNC

SYNCRDY

SBUSY

0

CMDRDY

WARNG

0

Data 1

High

Low

IW

+0

IW

+1

IW

+2

7 6 5 4 3 2 1 0

MP2000 (master)

[Input register]

Scan counter

used by system

Slave status

used by system

bit7

bit6

bit5

bit4

bit3

bit2

bit1

bit0

SYNC

SYNCRDY

SBUSY

0

CMDRDY

WARNG

0

ᧂ૶↪

IW

+0

IW

+1

IW

+2

7 6 5 4 3 2 1 0

MP2300S (slave)

[Input register]

Scan counter

unused

Slave status

unused

Data 1

High

Low

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