Outline Of Design; Selection Of Controller Or Control Board; I/O Control Points; Transmission Distance - Panasonic S-LINK V User Manual

Outline of Design

Selection of Controller or Control board

Select a S-LINK V controller or a S-LINK V control board optimum for the upper machines (PLC, PC, PCI bus
computer, VME bus computer, open network).

I/O Control Points

The system needs the following I/O control points. Design the system considering these points.
● Each controller or control board can control up to 256 nodes (number of I/O units connected to the system)
and 512 points (512 points × 2 for the SL-VVMES2). To control more than 512 points (512 points × 2 for the
SL-VVMES2) of I/O device, connect two or more controllers as the other systems.
● To cope with various PLC connection types of various manufacturers, we can provide 8 types of PLC input
connectors and 7 types of PLC output connectors. For a detailed description, refer to pages 155 and 156.
Each PLC I/O connector has 32 points for any model.
Each system needs one controller or one control board.
NOTE
Two or more controllers or control boards cannot be connected to one system.
The above described number of I/O control points (512 points or 512 points × 2 for the
SL-VVMES2) and the number of nodes (256 nodes) are the maximum values.
This means that these values depend on the total cable length and the conditions of the con-
nected machine (total current consumption, voltage drop, etc.).
For a detailed description, refer to pages 17 to 23.

Transmission Distance

The following two types of cables can be used for the S-LINK V system.
● Exclusive 4-core flat cable (recommended cable)
● 4-core VCTF cable (0.3 to 2.0mm
Note: The VCTF cable is the vinyl cabtyre cable that conforms to the requirements of JIS C 3306 'Polyvinyl chloride insulated flexible cords.'
To wire the S-LINK V system, use 4-core cables so that the wire system can consist of 2 power supply lines
(+24V, 0V) and 2 signal transmission lines (D, G).
The cable length depends on the total cable length and the transmission distance.
Control area
16
2
, non-shielded) commercially available
: S-LINK V I/O unit
(Branch line)
B C
(Main line)
A
Total cable length =
Transmission distance =
(Branch line) (Branch line)
D
A B C D
+ + +
A