Mitsubishi Q02CPU

App
- 5
Appendix 1 Special Relay List
APPENDICES
*1: This applies to the CPU of function version B or later.
TableApp.3 Special relay
Number Name Meaning Explanation
Set by
(When Set)
Corres-
ponding
ACPU
M9
Corresponding CPU
SM247 No. 4 CPU error flag
OFF : No. 4 CPU normal
ON : No. 4 CPU during stop
error
• Goes OFF when the No. 4 CPU is normal (including
a continuation error).
• Comes ON when the No. 4 CPU is during a stop
error
S (Status change) New
Qn(H)
*1
QnPH
SM250 Max. loaded I/O read
OFF : Ignored
ON : Read
• When this relay goes from OFF to ON, maximum
loaded I/O number is read to SD250.
UNew
QnA
Qn(H)
QnPH
QnPRH
Rem
SM251 I/O change flag
OFF : No replacement
ON : Replacement
• By turning this relay ON after setting the head I/O
number of the replaced I/O module to SD251, the I/O
module can be replaced online (with power on).
(Only one module can be replaced for each setting.)
• Turn this relay ON in the test mode of the program or
peripheral device for an I/O module change during
RUN, or in the test mode of the peripheral device for
an I/O change during STOP.
• Do not execute a RUN/STOP mode change until I/O
module change is finished.
U M9094
Q2A(S1)
Q3A
Q4A
Q4AR
SM252 I/O change OK
OFF : Replacement
prohibited
ON : Replacement enabled
• Goes ON when I/O replacement is OK. S (END) New
SM254
All stations refresh
command
OFF : Refresh arrival station
ON : Refresh all stations
• Effective for the batch refresh (also effective for the
low speed cyclic)
• Designate whether to receive arrival stations only or
to receive all slave stations.
UNew
Qn(H)
QnPH
QnPRH
SM255
MELSECNET/10,
MELSECNET/H
module 1 information
OFF : Operative network
ON : Standby network
• Goes ON for standby network(If no designation has
been made concerning active or standby, active is
assumed.)
S (Initial) New
QnA
Qn(H)
QnPH
QnPRH
SM256
OFF : Reads
ON : Does not read
• For refresh from link to CPU module (B, W, etc.)
indicate whether to read from the link module.
UNew
SM257
OFF : Writes
ON : Does not write
• For refresh from CPU module to link (B, W, etc.),
designate whether to write to the link module.
UNew
SM260
MELSECNET/10,
MELSECNET/H
module 2 information
OFF : Operative network
ON : Standby network
• Goes ON for standby network
(If no designation has been made concerning active
or standby, active is assumed.)
S (Initial) New
SM261
OFF : Reads
ON : Does not read
• For refresh from link to CPU module (B, W, etc.)
indicate whether to read from the link module.
UNew
SM262
OFF : Writes
ON : Does not write
• For refresh from CPU module to link (B, W, etc.),
designate whether to write to the link module.
UNew
SM265
MELSECNET/10,
MELSECNET/H
module 3 information
OFF : Operative network
ON : Standby network
• Goes ON for standby network
(If no designation has been made concerning active
or standby, active is assumed.)
S (Initial) New
SM266
OFF : Reads
ON : Does not read
• For refresh from link to CPU module (B, W, etc.)
indicate whether to read from the link module.
UNew
SM267
OFF : Writes
ON : Does not write
• For refresh from CPU module to link (B, W, etc.),
designate whether to write to the link module.
UNew
SM270
MELSECNET/10,
MELSECNET/H
module 4 information
OFF : Operative network
ON : Standby network
• Goes ON for standby network
(If no designation has been made concerning active
or standby, active is assumed.)
S (Initial) New
SM271
OFF : Reads
ON : Does not read
• For refresh from link to CPU module (B, W, etc.)
indicate whether to read from the link module.
UNew
SM272
OFF : Writes
ON : Does not write
• For refresh from CPU module to link (B, W, etc.),
designate whether to write to the link module.
UNew
SM280 CC-Link error
OFF : Normal
ON : Error
• Goes ON when a CC-Link error is detected in any of
the installed CC-Link module. Goes OFF when
normal operation is restored.
S (Status change) New
Qn(H)
QnPH
QnPRH
Rem
• Goes ON when a CC-Link error is detected in any of
the installed CC-Link module. Remains ON if the
condition is restored to normal thereafter.
S (Error) New QnA
SM315
Communication
reserved time delay
enable/disable flag
OFF : Without delay
ON : With delay
• This flag is enabled when the time reserved for
communication processing is set in SD315.
• Turns ON to delay the END processing by the time
set in SD315 in order to perform communication
processing.
(The scan time increases by the period set in
SD315.)
• Turns OFF to perform the END processing without a
delay of the time set in SD315 when there is no
communication processing. (Defaults to OFF)
U New Q00J/Q00/Q01