98
I/O Table Creation Problems
Section 7-6
CVM1/CV
CPU Unit
Remote I/O errors are not indicated at the CPU Unit.
Master Unit
Display
Function
END RS CHK
(T
i
h
k)
Lit
Lit until a terminator is found.
(Terminator check)
Flashing
Flashes if multiple terminators are set.
Unlit
Turns OFF if one and only one terminator is
found.
Auxiliary Area
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit number
A005
Error Check Bit (RM #0)
Error Check Bit (RM #1)
Error Check Bit (RM #2)
Error Check Bit (RM #3)
Error Check Bit (RM #4)
Error Check Bit (RM #5)
Error Check Bit (RM #6)
Error Check Bit (RM #7)
Not used
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit number
A470 to A477
0
0
Error Check Bit
Remote I/O Error Flag
0
Bit 15 to 8
Bit 7 to 4
Location of error
Bit 15 to 8
Meaning
Bit 7 to 4
Meaning
Remote I/O Master Unit
or
Remote I/O Slave Unit
B0 Hex
to
B7 Hex
The digit on the right (0 to
7) indicates the mounting
order of the Master of the
R
t I/O S b
t
0 to 7 (BCD)
Indicate error in Remote
I/O Slave Unit with unit
numbers #0 to #7.
Remote I/O Subsystem
involved.
8 (BCD)
Indicates error in the
Remote I/O Master Unit.
Optical I/O Unit
00 (BCD)
to
Indicates the address of the
Optical I/O Unit where the
0 (BCD)
Indicates an even word.
to
31 (BCD)
Optical I/O Unit where the
error has occurred.
1 (BCD)
Indicates an odd word.
I/O Link Unit
or
Remote Terminal
00 (BCD)
to
31 (BCD)
Indicates the address of the
I/O Link Unit or Remote
Terminal where the error
has occurred.
---
Error Check Bit
If there are errors in more than one Slave, or multiple terminators have been set,
data for the Units can be accessed in order by turning these bits ON (after the
data is read, the bit automatically turns OFF). Bits A00500 to A00507 corre-
spond to Masters #0 to #7.
Remote I/O Error Flag
This flag indicates that an error has occurred in a Remote I/O Slave Unit, an I/O
Link Unit, or a Remote Terminal. It also turns ON where there is more than one
terminator set.
Multiple terminators are detected as follows:
Display
Summary
