Mitsubishi MELSEC-Q series Programming Manual page 34

(c) MODE
The process control instructions have the following operation modes that satisfy the following operations in a
system connected to an operator station, programmable controller, host computer, machine side operation panel
and like.
For MODE make one of them a 1 bit only flag 1.
Operation mode
MAN
(MANUAL)
AUT
(AUTOMATIC)
CAS
(CASCADE)
CMV
(COMPUTER MV)
CSV
(COMPUTER SV)
CMB
(COMPUTER MANUAL BACK UP)
CAB
(COMPUTER AUTOMATIC BACK UP)
CCB
(COMPUTER CASCADE BACK UP)
LCM
(LOCAL MANIPULATED)
LCA
(LOCAL AUTOMATIC)
LCC
(LOCAL CASCADE)
32
b15 b14 b12 b11 b10 b9 b8
b13
C C
S M
V V
Description
• Manual operation from OPS
• SV and MV can be set.
• Automatic operation
• SV can be set.
• MV cannot be set.
• Cascade operation
• SV and MV cannot be set.
• Automatic MV setting from host computer
• Automatic SV setting from host computer
• Manual operation backup when host
computer is abnormal
• Automatic operation backup when host
computer is abnormal
• Cascade operation backup when host
computer is abnormal
• Local manual operation
• Local automatic operation
• Local cascade operation
b6 b4 b3 b2 b1
b7 b5
C C C C A M L L
C A M A U A C C
B T C A
B B S N
Monitoring and control from operator station are
performed.
Loop operation from host computer can be
performed and operation mode is controlled and
monitored at operator station.
During loop control by host computer, backup is
provided by predetermined operator station
when computer fails.
At startup of plant, operation and startup are
performed by loop display or like from other
than operator station and operation mode is
monitored by operator station.
b0
L
C
M
Application