Elpro 105U-G-MD1 Modbus RTU
Stock Code:
SKU: 105U-G-MD1
The Elpro 105U-G-MD1 can be configured for Modbus master interface, Modbus slave, or DF1. It has two serial connections - RS232 and RS485, on the bottom end plate of the module. The serial port provides both RS232 and RS485 hardware connections, however both connections are paralleled internally - both connections cannot be used at the same time. Either RS232 or RS485 can be used for Modbus communications, however only the RS232 port can be used for DF1. The serial port must be configured to suit the host device. Serial data rates between 1200 and 19200 baud may be selected, and character types with 7 or 8 data bits, even/odd/none parity, and 1 or 2 stop bits may be selected. The Modbus/DF1 105G has 4300 general-purpose I/O registers. Each discrete, analog and pulse I/O point takes up one register.
- AC/DC/battery power options, UPS battery charger and solar regulator
- Interconnects similar/dissimilar industrial protocols (Master/Slave, Slave/Slave, Master/Master) connecting to databus at full speed (e.g. 12 Mbps Profibus)
- Eight on-board digital I/O which can be configured as either inputs or outputs. Additional internal I/O points include low/normal supply/battery voltage (analog)
- Point to multi-point connectivity with forward error correction, communications integrity check with security encryption
- Online read/write of register I/O, reporting of signal strength (RSSI) with diagnostics including radio path measurement and communications logging
Indicative Applications
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Radio Frequency and TX Power Option Availability
| Frequency | Frequency Band | TX Power | Channel Spacing |
| 400MHz | 360 - 512MHz | 10 - 500mW, 0.5 - 5W | 12.5/20/25KHz |
| 868MHz | 868.525MHz | 500mW | 250KHz |
Note:
Specifications subject to change.
I/O Specifications and Ports
| Digital I/O onboard | Eight non voltage/FET I/O: 30VDC 500mA (D I/O configurable as either inputs or outputs) |
| RS232 Serial Port | 9pin DB9 female connector (used for programming only) 9600 baud, 8 bits, no parity, 1 stop bit |
| RS485 Serial Port | Terminal connector (serial expansion only, cable up to 2000m) 9600 baud, 8 bits, no parity, 1 stop bit |
| Ethernet Port RJ45 connector | 10/100 Mbps transformer isolated interface |
Note:
Specifications subject to change.
General Specifications
| Temperature | -40°C to +60°C |
| Humidity | 0-99%RH Non-Condensing |
| Housing | Extruded aluminium: 130 x 185 x 60mm |
| Mounting | DIN mounting |
| Terminal strip | Removable: up to 2.5mm2 (12 gauge AWG wires) |
| Approvals Safety | EMC FCC Part 15, AS3548, EN 301 489 EN60950 RoHS compliant |
Power Supply Specifications
| Mains supply | 12 - 24VAC/9 - 30VDC: over-voltage/reverse power protected |
| Battery supply | 11.5 - 15.0VDC (battery supply volts internal I/O value) |
| Battery charging circuit | 1.2 - 12AHr batter maximum charge current 0.7 at >12V |
| Solar regulator | Direct connection solar panel (up to 30W)/solar battery 100AHr |
| Loop supply | Internal DC/DC converter: 24VDC 150mA |
| Quiscient current draw | 12V, 150mA: 24V, 90mA: add 5mA per I/O point used |
| Transmission current draw | +12V, 350mA: 24V, 200mA |
Note:
Specifications subject to change.
Radio Transceiver
| Transmit power 400MHz 868MHz | 10 - 500mW, 0.5 - 5W: approved to EN 300 113, EN 300 220 868.525MHz: 500mW |
| Receiver sensitivity 400MHz 868MHz | -112dBm -108dBm: 868.525MHz |
| Line of sight range max* 400MHz 868MHz | 100mW EIRP: to 5km 500mW: to 5km |
| Antenna connector 400MHz 868MHz | BNC female coaxial (with gas discharge arrestor) SMA female (Surge diverter: CSD-SMA-2500 with CCTAIL-SMA-M |
Note:
Specifications subject to change.
• *As with all distances quoted, these are dependant on local terrain/obstacles
Wireless gateways provide connectivity between similar/dissimilar industrial databuses and/or field device I/O (e.g. Ethernet/IP to Profibus, etc.) Connected via RS232/485 and Ethernet, register allocated data-bus values are transmitted/received by radio to and from devices such as PLC's, HMI's, etc.
Flexible by design, Elpro's 105U-G series can multi-hop repeat five times, support a variety of industrial protocols and when combined with Elpro's 1115S and/or I/O products, can create simple to complex I/O products, can create simple to complex I/O networks supporting differing protocols.
Elpro 105U-G-MD1
- Modbus RTU (Master & Slave), DF1
- Up to 4300 I/O points: analog and/or discrete
- Modbus - RS232/485: 300-19200bps
- DF1 (full duplex) - RS232: 300-19200bps
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