A - 45
Appendices
NX-series Position Interface Units User’s Manual (W524)
A-2 Object Lists
A
A-2-3 SSI Input Units
• The error code shows the communications status in each cycle. A value of 0 is returned on success,
or the error code is returned on failure.
An SSI Communications Error event occurs when there is an SSI communications error, so you can
check the error code in the attached information.
• The following table shows the bit configuration of the SSI Communications Error Code object.
The error status in the SSI Status object and the SSI Communications Error Code object are
both set to 0 when the data is received without an error.
Index
(hex)
Subin-
dex
(hex)
Object name Default Data range Unit Data type Access
I/O
allo-
cat-
ion
Data
attri-
bute
6008 --- SSI Communications
Error Code
--- --- --- --- --- --- ---
00 Number of Entries
*1
*1. The values for the NX-ECS112 are 1. The values for the NX-ECS212 are 2.
*1 --- USINT RO No ---
01 Ch1 SSI Communications
Error Code
00 hex 00 to FF hex --- BYTE RO Yes ---
02 Ch2 SSI Communications
Error Code
*2
*2. This object does not exist on the NX-ECS112.
00 hex 00 to FF hex --- BYTE RO Yes ---
Bit Status name
0 No error
1 Communications preparation incomplete
2 Frame Error
3 Parity Error
4 Communications timeout
5 Out of range for position difference
Index
(hex)
Subin-
dex
(hex)
Object name Default Data range Unit Data type Access
I/O
allo-
cat-
ion
Data
attri-
bute
6009 --- Status Data --- --- --- --- --- --- ---
00 Number of Entries
*1
*1. The values for the NX-ECS112 are 1. The values for the NX-ECS212 are 2.
*1 --- USINT RO No ---
01 Ch1 Status Data 00000000
hex
00000000 to
FFFFFFFF hex
--- DWORD RO Yes ---
02
Ch2 Status Data
*2
*2. This object does not exist on the NX-ECS112.
00000000
hex
00000000 to
FFFFFFFF hex
--- DWORD RO Yes ---