Description
The tM-AD8 is an current input module that includes 8 single-ended analog input channels and provides a programmable input range on all analog inputs (0 ~ 20 mA, 4 ~ 20 mA). The sampling rate of the tM-AD8 is adjustable and is available in either fast or normal mode and It also provides 4 KV ESD protection as well as 2500 Vrms intra-module isolation.
Modbus RTU, Modbus ASCII or DCON Protocols available.
Features
- 8-channel Single-ended Inputs
- Current Inputs
- Resolution: 14/12 bits
- Adjustable Sampling Rate
- 4 kV ESD and EFT Protecton
- 3 kV Surge Protection
- Dual Watchdog
- 2500 VDC Intra-module Isolation
- Cost-effective
- Wide Operating Temperature Range: -25 °C ~ +75 °C
Specifications
I/O Specifications
Analog Input | ||
Input Channels | 8 Single-ended | |
Type | 0 ~ 20 mA, 4 ~ 20 mA | |
Resolution | Normal Mode | 14-bit |
Fast Mode | 12-bit | |
Sampling Rate | Normal Mode | 10 Hz total |
Fast Mode | 200 Hz total | |
Accuracy | Normal Mode | +/-0.1% |
Fast Mode | +/-0.5% | |
Zero Drift | +/- 20 μV/°C | |
Span Drift | +/- 25 ppm/°C | |
Input Impedance | 125 Ω |
System Specifications
Communication | ||
Interface | RS-485 | |
Format | (N, 8, 1), (N, 8, 2), (O, 8, 1), (E, 8, 1) | |
Baud Rate | 1200 ~ 115200 bps | |
Protocol | DCON, Modbus/RTU, Modbus/ASCII | |
Dual Watchdog | Yes, Module (2.3 seconds), Communication (Programmable) | |
LED Indicators | ||
Power | 1 LED as Power Indicator | |
Isolation | ||
Intra-module Isolation, Field-to-Logic | 2500 VDC | |
EMS Protection | ||
ESD (IEC 61000-4-2) | ±4 kV Contact for Each Terminal | |
±8 kV Air for Random Point | ||
EFT (IEC 61000-4-4) | +/-4kV for Power | |
Power Requirements | ||
Reverse Polarity Protection | Yes | |
Powered from Terminal Block | Yes, 10 ~ 30 VDC | |
Consumption | 0.7 W Max. | |
Mechanical | ||
Dimensions (W x L x H) | 52 mm x 98 mm x 27 mm | |
Installation | DIN-Rail Mounting | |
Environment | ||
Operating Temperature | -25 °C ~ +75 °C | |
Storage Temperature | -30 °C ~ +75 °C | |
Humidity | 10 ~ 95% RH, Non-condensing |
Technical
Applications
- Industrial Automation
- Industrial Machinery
- Building Automation