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I/O Modules
Analog Input Model
- 4 Channel analog input (0-20mA)
- 18-28 VDC wide Power input
- 12 Bit A/D Converter with signal conditioning
- MODBUS RTU Communication
- Standard 35mm DIN Rail
- Mounting with common interface bus for power and communication
- 3 programmable open drain outputs for safety alarms
I/O Module Description
PemTech's analog input module model #PT800-AI is an addressable four channel analog input module with 3 discrete outputs. Communication adheres to industry standard RS-485 Modbus RTU protocol. DC power input is protected against reverse polarity. Modules are DIN Rail mounted and share a common bus when stacked together. Each module address is settable by means of easily accessible rotary switches.
The input accommodates wide DC input. Discrete open drain outputs are fully programmable and can be configured with high and low alarm levels exclusive tied to the input channels of the module. These discrete outputs makes this module a Fail safe stand alone unit without the presence of a system controller or PLC.
Multi-channel design with alarm support and communication interface make this module extremely powerful and adds cost-efficiency with high density mounting for use in both control room and distributed I/O applications.
I/O Module Specifications
- Input Ranges
- 0-50mA max (4-20mA nominal)
- Accuracy
- 12 Bit A/D conversion with +/- 2 LSB
- Input Power
- 18-28 VDC (24VDC Nominal)
- Power Consumption
- < 1.2 Watts
- Output Type
- 3 Discrete outputs can be configured as limit alarms capable of driving external power relays.
- Network Communication
- Industry standard RS-485 Modbus RTU protocol.
- Dimension
- Standard 35mm DIN Rail mounting Type EN50022
- 3.9”H x 4.5”D x 0.9”W
- LED Indicators
- Amber and Red LED indicators for limit alarms and Communication fail functions.
- Ordering
- Part Number: PT800-AI (4 Channel Analog Input)
PT800-RM (Relay module)
PT800-SI (Status Input module
- Part Number: PT800-AI (4 Channel Analog Input)