Mitsubishi Electric MELDAS C6 Interface Manual page 177

B con-
Signal name
tact
ADD-ON (EXPANSION)
—
OPERATION BOARD INPUT
[Function]
By adding the remote I/O unit to the communication terminal, the add-on (expansion) operation
board input/output signals can be input and output with the communication terminal control signals.
R90 bit8 is used as the communication terminal board reset signal.
[Operation]
The signals are read together with other input signals at start of PLC main processing (medium
speed).
<Hardware block diagram>
Controller
(Note 1) Since these signals are based on bit unit, they must be once transferred to buffer (M), etc.
Sequential control program example:
X0
X0
M512
(Note 2) Refer to the section "2.1 Relation of RIO unit and devices" for the relation of the remote
I/O channel setting switch and device.
[Related signals]
(1) Add-on (expansion) operation board output (#1: R190~192, #2: R193~195)
6. EXPLANATION OF INTERFACE SIGNALS
6.2 PLC Input Signals (Data Type: R***)
Signal
abbreviation
Communication
terminal
•
•
DMOV R90
•
•
DMOV R92
•
•
•
•
6-2-17
1st system 2nd system
#1: R90~93
#2: R94~97
Remote
I/O unit
(Channel
# 1
setting 0)
Remote
I/O unit
(Channel setting 2)
# 2
Contents stored in R90 and R91 are
K8M512
transferred to M512~M543.
Contents stored in R92 and R93 are
K8M544
transferred to M544~M575.
< >
Sequence processing as bit data
Y710
3rd system
— —
Machine operation board
(switches, lamps, etc.)