Buffer Memory Details - Mitsubishi Electric MELSEC QS Series User Manual

8
PROGRAMMING SPECIFICATIONS

8.2.2 Buffer memory details

The following explains the details of the items shown in Table8.2, "Buffer Memory List" in
Section 8.3.1.
(1) Parameter information area
Address
Hex. Dec.
0 0 (Use prohibited)
H
Number of
1 1 connected
H
modules
2 2 Number of retries
H
Number of
3 3 automatic return
H
modules
Standby master
4 4 station
H
specification
5 5 (Use prohibited)
H
Safety CPU down
6 6
H
select
7 7 Scan mode setting
H
Delay information
8 8
H
setting
9 to F 9 to 15 (Use prohibited)
H H
Reserved station
10 to 13 16 to 19
H H
specification
Error invalid station
14 to 17 20 to 23
H H
specification
18 to 1F 24 to 31 (Use prohibited)
H H
This area stores the parameter settings that were written from GX Developer to the
PLC. For the setting details, refer to CHAPTER 6.
Table8.3 Parameter Information Area List (1/2)
Item Description
---
Stores the number of safety
remote I/O stations, standard
remote I/O stations and remote
device stations that are
connected to the safety master
station. (including reserved
stations)
Stores the number of retries to
be performed to a
communication error station.
Stores the number of safety
remote I/O stations, standard
remote I/O stations and remote
device stations that can rejoin
the network in one link scan.
Stores the station number of the
standby master station.
---
Stores a value of the data link
status specified for when a
safety CPU module error occurs
on the safety master station.
Stores data showing whether
the link scan is synchronous
with the sequence scan or not.
Set 0 for the delay time.
---
Stores the reserved station
data.
Stores the error invalid station
data.
---
8.2 Buffer Memory
8.2.2 Buffer memory details
Data range
---
1 to 64 (modules)
1 to 7 (times)
1 to 10 (modules)
0: No standby master station specified
(Fixed)
---
0 (Stop) (Fixed)
1 (Synchronous) (Fixed)
0: Not specified (Fixed)
---
Bit corresponding to the station number
turns on.
0: Not specified (Fixed)
---
1
2
3
Default value
---
64 (modules)
4
3 (times)
5
1 (module)
0
---
6
0
1
0
7
---
0 (Not
specified)
0
---
8
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