IOEXC

IOEXC, IOEXCP

IOEXC instruction is used to replace I/O module when CPU is running (Online status).

(It supports only in XP B type CPU series)


n	Slot number of module to be replaced
S	Set 1 or Reset 0

Instruction

Device address

No. of Steps

Flag

M

X

Y

K

L

F

T

C

S

Z

D

@D

Int.

Error

Zero

Carry

IOEXC

IOEXCP

n

o

-

o

3

o

-

S

o

-

o

Notice

This instruction works with only IO modules. In case of special and communication module replacement, you need to reset and download parameters or special programs to the modules manually.

In order to download special programs or parameters to special and communication module automatically, click Online and choose Enable/Disable Module in CICON.

In case of error, take module off and put it in Base again.

If the IOEXCP is disabled before module replacement, the system should be dead.

Format : IOEXC n S

n : HEX that shows Base and Slot number of expansion module.

Ex) H + (Base number) + (Slot number)

Base number	Slot number	n1
Local Base	Slot number 5.	H0005
Expansion Base number 1.	Slot number 3.	H0103
Expansion Base number 10.	Slot number 7.	H0A07
Expansion Base number 14.	Slot number 12.	H0E0C
Expansion Base number 16.	Slot number 10.	H100A

Please refer to below the Base and Slot number system for CM1 series.

S : Set (1) or Reset (0)

Set 1 : Start I/O module replacement

Reset 0 : Stop I/O module replacement

Base and Slot number for CM1

Example) Module replacement

The module is installed at the Base number 1 and slot number 5.

Step 1) If X01 is ON, the IOEXCP instruction sets 1 to have module replaced.

Step 2) Take module off and replace module

Step 3) If there is no error, move Step 4. If there is an error, go back to Step 2.

Step 4) Turn Off X01 and complete replacement.