Shavison Electronics

MODBUS RELAY / INPUT MODULES

SMART IO'S

ABOUT:
These modules are designed to cater to the following needs:
1) Cost effective expansion of existing PLC system.
2) Cost effective control of remote field devices.
3) Control of field devices from personal computer.
4) Data acquisition.

FEATURES:

Supports Modbus communication protocol.
Works as slave with PLC master.
Communication over RS232/485 bus.
2500VAC isolation between 485 link and station circuit.
Slave address and baud rate selectivity via 485 bus.
Links upto 4000ft(1.2KM) long possible.
Onboard SMPS works from 90 to 270VAC.
Models available with Onboard DC-DC convertor which works from18 to 36VDC.
Response time <50msec.
Low cost.
35 mm DIN rail mountability.

MODELS AND SPECIFICATIONS:

1) 8 CHANNEL MODBUS RELAY OUTPUT MODULE:

This module has 8 single changeover onboard relays with contacts taken out for field devices. Each relay has unique coil address
which is used to force relay on/off.The coils can be made on/off individually or in combination using Modbus commands.
Dimensions in mm :
             Width(W) : 185mm(max)
             Height(H) : 115mm(max)
             Depth(D) : 80mm(max)                                                                Application Note

Output : 8 channel, 1 change -over Relays.

Aux Supply	Order Code
90 - 270 VAC	AS455-230VAC
18 - 36 VDC	AS455-24VDC

2) DIGITAL KEY INPUT MODULE:

Internal 24V supply also available. Looping of
+Ve or -Ve to be done as required.

This module has processor which continuously scans the 8 digital key inputs and sends the status of keys to master when read from master is detected.
Dimensions in mm :
             Width(W) : 185mm(max)
             Height(H) : 115mm(max)
             Depth(D) : 80mm(max)                                                                Application Note
Input : 8 Digital Inputs.

Aux Supply	Order Code
90 - 270 VAC	AS456-230VAC
18 - 36 VDC	AS456-24VDC

3) COMBO MODULE:

This module comprises both input and output. It has 4 relay outputs and 4 digital key inputs.
Dimensions in mm :
             Width(W) : 185mm(max)
             Height(H) : 115mm(max)
             Depth(D) : 80mm(max)                                                                Application Note
Input : 4 Digital Inputs.
Output : 4 channel, 1 change-over Relays.

Aux Supply	Order Code
90 - 270 VAC	AS457-230VAC
18 - 36 VDC	AS457-24VDC

4) ANALOG INPUT / OUTPUT MODULE:

Under development

The analog input module accepts the analog inputs such as 4-20mA, 0-10Vdc, inputs from thermocouple, RTD, LoadCell, etc, converts it to digital and sends it to master PLC/PC for control.

For further details please call us.

5) SOLID STATE OUTPUT MODULE:

Under development

This module has 8 SSR / TRIAC outputs for field devices. Each channel has unique coil address which is used to drive load.The coils can be made on/off individually or in combination using Modbus commands.

For further details please call us.