Overview
CLMod is RS485 to 20 mA current loop converter. CL Mod can remotely gather data from electricity meters. This converter was developed to read multiple meters data over 20mA current loop interface with long distance lines up to 2km. CLMod with 6 current loop interfaces is capable to readout data up to 30 meters (5 meters per single current loop). CLMod can is protocol agnostic you can use with any type of protocol.
Features
- 6 independant 20mA current loop interfaces
- Galvanic 3kV(rms) isolation
- LED indication of data transmission on every current loop interface
- Supports 5 meters per current loop (30 meters total)
- Baud rates: 300 to 19200
- Automatic open loop detection and disconnection
- Fail indication for each current loop
- Integrated current loop protection
- Compatible with Elgama Elektronika meters
- RS485 interface for RTU/Datalogger
- Operating temperature: -40°C +80°C
- Dimension 101x119x17.5mm
Communication
- Communication standard: RS485
- Communication protocol: Modbus (RTU), DLMS/Cosem and IEC 62056-21
- Speed: 300 – 19200 baud
Electrical characteristics
- Termination resistor: Software selectable, 120Ω
- Power supply: 24VDC / 21.6-26.4VDC (full range)
- 3kV galvanic isolation with isolated DC/DC power supply inside(RS485 and power supply is isolated from current loop interfaces)
- Integrated current loop protections:
- Rated current: 0,2A
- Max pule discharge current (8/20 µs): 10kA
- Reaction time in µs: 1
Specifications
| Device data | |
| Article number | CLMOD |
| Product description | RS485 to current loop converter. With 6 independent current loop 20mA interfaces. |
| Configuration software | Not required |
| Warranty | 2 years |
| Interfaces and functions | |
| Meter interfaces | 6 independent current loop interfaces (20mA) |
| interface capacity | 5 meters per interface (where voltage drop per meter <2VDC) |
| Total meters | up to 30 (6×5 meters) |
| Interface protection | Every current loop interface has embedded independent protection circuit |
| Max pule discharge current | up to 10kA (8/20 µs) |
| Reaction time | >=1µs |
| Cut off current | > 200mA |
| Max input voltage | 33V |
| Interface and communication | |
| RS485 interface | ANSI/TIA/EIA-485-A-1998 |
| Communication protocols | Protocol agnostic (transparent) tested with: – Modbus RTU; – DLMS/COSEM; – IEC 62056-21; – IEC 62056-31. |
| Baudrate | 300 – 19200 baud |
| Parity | None, Even, Odd |
| Terminating resistors | 120 Ohm (configurable) |
| Current loop interface | 6 independent interfaces |
| Galvanic isolation | >3kV individual isolation each interface |
| Max distance | <2 km per interface |
| Max meters | up to 5 meters per interface |
| Protection | on every current loop interface independent |
| Power supply | |
| Auxiliary power supply | 9-33VDC (full range) |
| Power consumption | 40mA @ 12VDC, 20mA @ 24 VDC |
| Insulation voltage | 3 kV |
| Operating conditions | |
| Operating temperature | -40°C … 55°C |
| Storage temperature | -40°C … 85°C |
| Relative humidity | max. 95 % (non condensing) |
| Protection class | IP20 |
| Dimensions and installation instructions | |
| Case height x width x depth | 119 x 17.5 x 101 mm |
| Installation type | DIN Rail mounting |
Documentation
Coming soon
Order
CLMOD6 – 6x current loop interfaces for meter with RS485 interface for communication device.