Memory Allocations - Omron CP1H-X40D Operation Manual

Memory Allocations

9-9 Memory Allocations
9-9-1 CIO Area Allocation
Service Status
!Caution Bit 15 is used for detect power condition of PLC, so do not change it at any
Error Status
The memory allocation about communication services status in the CIO area
of PLC is shown as the following diagram. The beginning CIO channel m is
calculated by the following equation:
m = CIO2980 + 10×(0xFD - Unit Address)
Offset D15
m Service Status
m+1 Error Status
m+2 FINS/TCP Connection Status
The following table describes the unit address for each option port.
Option Port No.
Option port 1
Option port 2
15 14 13 12 11 10
m 1 0 0
Bit Name
0 to 13 Reserved
14 Link Status
15 Reserved
time. Otherwise the CP1W-CIF41 Ethernet Option Board will generate error.
The status of errors that occur at the Ethernet Option Board is reflected as
shown in the following diagram.
15 14 13 12 11 10
m+1 0 0 0
Address disagreement
EEPROM error
I/O Capacity Unit Address
14/20 0xFC
30/40/60 0xFD
30/40/60 0xFC
9 8 7 6
0 0 0 0 0 0
Always 0.
0: The link between hubs is terminated.
1: A link is established between hubs.
Always 1.
9 8 7 6 5
0 0 0 0 0
Section 9-9
D0
Range of Status Area
CIO2990 to CIO2992
CIO2980 to CIO2982
CIO2990 to CIO2992
5 4 3 2 1 0
0 0 0 0 0 0
Unit operation
4 3 2 1 0
0 0
IP address setting error
IP address table error
IP router table error
Routing table error
565