382
VB
Slave
VB
Slave
RS- 485
VB
protocol
VB
Slave
RS- 232
VB
protocol
VS series
PLC
VS series
PLC
VS series
PLC
HMI
or
SCADA
HMI
or
SCADA
7-3-4 VB Computer Link Slave
When the VS PLC’s communication port has been set to the application type of the “VS Computer Link Slave”, the
human-machine interface (HMI) or supervisory control and data acquisition system (SCADA) can access the VS PLC’s
data through the “M, VB and VH series Communication Protocol” (hereby referred to as VB protocol).
This application type is mainly applied to the following situations:
1. When the old versions of HMI or SCADA can only support the “M, VB and VH Protocol” but not support the
“VS Computer Link Protocol”.
2. When the existed “VB Protocol” network is added with a new VS series PLC, the added VS PLC must work under this
application type.
When the VS PLC works under this application type, the components can be accessed are limited to the previously VB
series PLC can support. (The components which the VS PLC can be used are more then the VB series have.)
Selectable: 300/600/1200/2400/4800/9600/19200/34800/57600/115200 bps.
M, VB and VH series Communication Protocol (hereby referred to as VB protocol)
Half-duplex
Up to 15 meters
Non-isolated: 50 m.; Isolated: 1 km.
1 Slave station only
Max. 256 stations (For more than 32, add
repeater(s) in the circuit is required)
CP1: Main Unit built-in
CP2~CP5: VS-D485-EC, VS-D485A-EC
CP2, CP4: VS-485-EC, VS-485A-EC, VS-D52A-EC(CH1)
CP3, CP5: VS-ENET-EC(CH2)
VS Series PLC (including VS1, VS2, VSM and VS3)
All the X, Y, M, S, T, C and D are included
Item
Specification
RS-485RS-232Communication Interface
Communication Protocol
Commection Method
Communication Paramete
Baud Rate
Distance
No. of Slave Stations
Linking Equipment
Available Model
Transferable Device
CP2~CP5: VS-D232-EC
CP3, CP5: VS-D52A-EC(CH2)
Bits-per-character: 7 bits; parity check: Even; stop bit: 1 bit
Set the station No.Set the application type:
VB Computer Link Slave
Set the baud rate
※ Usually the default delay response time is not necessary to change, except that:
When the suspect of bad communication is caused by the problem of signal collision in the circuit, try to extend
the delay response time.
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