Buffer Memory Of Cc-Link Master; Parameter Information Area; Number Of Connected Units - Panasonic SL-VGU1-C User Manual

Memory Map

2. Buffer Memory of CC-Link Master

In the CC-Link master, data is assigned to the buffer memory as shown in the following table.
One CC-Link master has 64 slave stations (SL-VGU1-C, etc.,) and data on these stations will be automatically
refreshed.
Address
hexadecimal Item
number
000 to 05F

Parameter information area

060 to 0DF Unusable
0E0 to 15F Remote input (RX)
160 to 1DF Remote output (RY)
1E0 to 2DF Remote register (RWwm)
2E0 to 3DF Remote register (RWrm)
3E0 to 5DF Unusable
5E0 to 5FF Special link relay (SB)
600 to 7FF Special link register (SW)
800 to 9FF Unusable
A00 to FFF Random access buffer
3. Parameter Information Area
Address
hexadecimal Item
number
00 Unusable
01

Number of connected units

02 Number of retry times
Number of units for auto-
03
matic multi-line scanning
04 Unusable
05 Unusable
Operation after CPU mal-
06
function
07 to 0F Unusable
10 to 13 Reserved station
14 to 17 Error invalid station
18 to 1F Unusable
20 to 5F Station information
Number of connected units
Number of connected units: 1 to 64 (01H to 40H)
36
Description
Stores the information necessary for data linking.
-
Stores the input status data sent from the S-LINK V system.
Stores the output status data sent to the S-LINK V system.
Stores the data (output) sent to the S-LINK V system.
Stores the data (input) received from the S-LINK V system.
-
Stores the data linking status data.
Stores the data linking status data.
-
Used for special commands, such as RIRD and RIWT.
Description
-
Sets the number of connected units (including the reserved sta-
tions).
Sets the number of retry times for the transmission error station.
Sets the number of units that can be scanned by 1 link multi-line
scanning.
-
-
Specifies data linking operation that should be performed after
detecting PLC CPU error in the master station.
-
Sets the reserved station.
Specifies the station that should be disabled in an error status.
-
Sets the station information for the connected units.
Possibility of
reading / writing
Readable and writable 3
-
For reading only
For writing only
4
For writing only
For reading only
-
Readable and writable
Writing, however,
may not be possible
for some devices.
-
Readable and writable
Default
-
64
3
1
-
-
0 (Stop)
-
0 (No station reserved)
0 (No invalid station)
-
Station type: Remote I/O station
Number of occupied stations: 1
Station number: 1 to 64