102
Slave Unit Numbers with Multiple Terminators Section 7-7
C200H/C200HS/C200HX/C200HG/C200HE(-Z)
CPU Unit
Remote I/O errors are not indicated at the CPU Unit.
Master Unit
Display Function
END RS
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.
SR
Area
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Bit
number
SR 251
00
Error Check Bit
Remote I/O Error Flag
Bit 15 to 8
Bit 7 to 4
Location of error Bit 15 to 8 Meaning Bit 7 to 4 Meaning
Remote I/O Slave Unit B0 Hex
to
B1 Hex
The digit on the right
indicates the unit number of
the Remote I/O Master Unit
(#0 or #1).
0 to 4 (BCD) Indicates the unit number
of the Remote I/O Slave
Unit.
Remote Terminal 00 (BCD)
to
31 (BCD)
Indicates the word address
setting for the Remote
Terminal.
0, 1 (BCD) Either 0 or 1 indicates error
in Remote Terminal.
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 this bit OFF and ON.
Remote I/O Error Flag
This flag indicates that an error has occurred in a Remote I/O Slave Unit or a
Remote
T
erminal. It
also turns ON where there is more than one terminator set.
Multiple terminators are detected as follows:
• The “END RS” indicator on the Remote I/O Master (RM) Unit flashes.
• By turning SR 25100 ON and OFF, the terminators can be read in order.
Display
Summary
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