Panasonic SL-VGU1-C

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Chapter 2
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
number
Item Description
Possibility of
reading / writing
000 to 05F Parameter information area Stores the information necessary for data linking. Readable and writable
060 to 0DF Unusable
- -
0E0 to 15F Remote input (RX) Stores the input status data sent from the S-LINK V system. For reading only
160 to 1DF Remote output (RY) Stores the output status data sent to the S-LINK V system. For writing only
1E0 to 2DF Remote register (RWwm) Stores the data (output) sent to the S-LINK V system. For writing only
2E0 to 3DF Remote register (RWrm) Stores the data (input) received from the S-LINK V system. For reading only
3E0 to 5DF Unusable
- -
5E0 to 5FF Special link relay (SB) Stores the data linking status data.
Readable and writable
Writing, however,
may not be possible
for some devices.
600 to 7FF Special link register (SW) Stores the data linking status data.
800 to 9FF Unusable
- -
A00 to FFF Random access buffer Used for special commands, such as RIRD and RIWT. Readable and writable
3. Parameter Information Area
Address
hexadecimal
number
Item Description Default
00 Unusable
- -
01 Number of connected units
Sets the number of connected units (including the reserved sta-
tions).
64
02 Number of retry times Sets the number of retry times for the transmission error station. 3
03
Number of units for auto-
matic multi-line scanning
Sets the number of units that can be scanned by 1 link multi-line
scanning.
1
04 Unusable
- -
05 Unusable - -
06
Operation after CPU mal-
function
Species data linking operation that should be performed after
detecting PLC CPU error in the master station.
0 (Stop)
07 to 0F Unusable
- -
10 to 13 Reserved station Sets the reserved station. 0 (No station reserved)
14 to 17 Error invalid station Species the station that should be disabled in an error status. 0 (No invalid station)
18 to 1F Unusable
- -
20 to 5F Station information Sets the station information for the connected units.
Station type: Remote I/O station
Number of occupied stations: 1
Station number: 1 to 64
Number of connected units
Number of connected units: 1 to 64 (01H to 40H)
3
4