4CH Isolated Digital Input & 4CH Relay
TRP-C28 provides 4 optical isolated digital input channels and 4 power relays output. All channels features screw terminals for convenient connection of field signals as well as LED’s to indicate channel status. Input channels are equipped with 3750 Vms DC isolation, and surge protection on RS-485 data lines that protect the module and device against high power voltage input and ground potential differences. For easy user access, TRP-C28 can enter configuration mode and self-test mode with outer dip-switch. TRP-C28 support both ASCII and Modbus protocol, with a full set of command, dual watch-dog, and auto reset function the module can be bi-directionally remote controlled by PC in ASCII or Modbus RTU protocol.
What's included
- Main unit (Power supply not included)
- Software CD
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More informationSpecifications
Input channel | 4 |
Input optical isolation | 3750 Vrms |
Input logical level 0 | +1V (max) |
Input logical level 1 | +4.0V to +30V |
Communication interface | RS-485 |
Communication speed | 0.2kbps to 115.2Kbps |
Input impedance | 3Kohm |
Distance | 500m (MAX) |
Digital Input can be used as counter channel | Yes, 4 |
Counter frequency | 100Hz |
Output channel | 4 channel power reply outputs |
Relay type | 2 Form A (RL1,RL2), 2 Form C (RL3,RL4) |
Contact ratting | 5A/30V DC, 5A/120V AC, 5A/250V AC |
Relay surge strength | 4000V |
Relay operating time | 3ms |
Relay operating life | 20 000 000 |
Dual watchdog | Hardware reset circuit, module and host operating status |
Signal LED | Power on, all channels |
Power supply | Screw terminal, or external DC adapter |
Connection type | Screw terminal |
Power consumption | 2.7W |
Operating environment | -10 to 50°C |
Storage temperature | -20 to 70°C |
Humidity | 10-90% Non-condensing |
Dimension (mm) | 151 x 75 x 26 |
Weight | 400g |
Product information
Features |
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