6-3
Section
Allocating PT Memory to the Host (Master)
79
Fixed Allocation
The Master Unit’s software settings for the following example procedure are
shown below.
PC model
Leading word address
CVM1/CV-series
CIO 1500 + (25
×
unit number)
CS1-series
CIO 2000 + (10
×
unit number)
C200HX/HG/HE with unit numbers 0 to 9
IR 100 + (10
×
unit number)
C200HX/HG/HE with unit numbers A to F
IR 400 + (10
×
(unit number – 10))
Not used.
Bit
Scan list enable bit
Scan list clear bit
Communications error stop release bit
Start remote I/O communications bit
Stop remote I/O communications bit
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Use the following procedure to register the remote I/O allocation area.
1, 2, 3...
1. Turn ON the Master (PC) after making any required Master Unit hardware
settings. Refer to the DeviceNet (CompoBus/D) Operation Manual (W267)
for details on Master Unit hardware settings.
2. Connect a Programming Device to the PC, turn ON the Master (PC), and
create the I/O table.
3. Turn OFF the Master (PC).
4. Turn ON all of the Slaves connected to the Master.
Make the required settings in the CompoBus/D memory switch screen of the
PT connected to the CompoBus/D Interface Unit and reset the PT. Always
set the input area size and output area size first.
5. Turn ON the Master (PC).
6. Switch the Master (PC) to PROGRAM mode.
7. Check the Master’s “Registered Slave information area” and verify that
communications have been established with the connected Slaves. The
location of the “Registered Slave information area” depends upon the PC
being used as shown below.
PC model
Leading word a 2
CVM1/CV-series
CIO 1502 + (25
×
unit number)
CS1-series
CIO 2002 + (10
×
unit number)
C200HX/HG/HE with unit numbers 0 to 9
IR 102 + (10
×
unit number)
C200HX/HG/HE with unit numbers A to F
IR 402 + (10
×
(unit number – 10))
Leading a 2
Leading a 3
Leading a 4
Leading a 5
Bit
15 14 13 12
11
10
9
8
7
6
5
4
3
2
1
0
The numbers in the table above indicate the node numbers corresponding
to each bit. A Slave is communicating normally when the bit corresponding
to its node number is ON.
8. Use a PC Programming Device to turn bit 01 of the software switches (the
scan list clear bit) from OFF to ON. (This operation is disabled when the
Master is operating in scan list disabled mode.)
