Module RF 920 MHz Modbus RTU 1 slot I/O ICP DAS RFU-IO-920 CR
RFU-IO-920 is a 920 MHz RF wireless I/O unit that uses the Modbus communication protocol. A remote Modbus master can use a 920 MHz wireless converter, such as the RFU-920, to convert Modbus commands into 920 MHz signals to control the I/O module on the RFU-IO-920, thereby implementing a wireless I/O solution. The RFU-IO-920 can achieve a transmission distance of 300 meters at a wireless baud rate of 125 kbps in a line-of-sight environment. To address potential environmental interference, the RFU-IO-920 offers multiple wireless baud rate options, ranging from 5 k bps to 250 kbps, allowing users to make adjustments. Additionally, users can adjust the wireless channel and group ID to avoid interference between adjacent 920 MHz networks. The RFU-IO-920 supports repeater mode to overcome communication distance and dead zone issues. The RFU-IO-920 also provides I/O pair-connection mode for remote I/O control without a host. These features can be configured via rotary and dip switches, making system maintenance and equipment replacement simple and convenient.
Feature
- 920 MHz Radio Frequency
- 16 RF channels
- Provides RF Baud Rates from 5 k to 250 kbps
- RF output power maximum 18 dBm
- Provides 4 Group IDs numbered from 0 ~ 3.
- Wireless line of sight (LOS) transmission range of up to 300 meters at an RF Baud Rate of 125 kbps and output power 18 dBm.
- Modbus RTU communication protocol.
- Modbus station ID: 1 ~ 32.
- One XV I/O board can be installed.
- Supports I/O pair-connection mode.
- Supports repeater mode
Application
-
1-to-1 Pair-connection Mode
-
1-to-many Pair-connection Mode
Specifications
| EMS Protection |
| EFT (IEC 61000-4-4) |
+/- 1 kV |
| ESD (IEC 61000-4-2) |
+/- 4 kV Contact |
| Surge (IEC 61000-4-5) |
+/- 1 kV |
| LED Indicators |
| Status |
PWR * 1, Tx * 1, Rx * 1 |
| RF |
| Antenna |
0 dBi Omni directional, RP-SMA |
| Baud Rate |
5 k ~ 250 kbps |
| Channels |
0 ~ 15 |
| Group ID |
0 ~ 3 |
| Protocol |
Modbus RTU |
| Radio Frequency |
920.0000 MHz ~ 924.6875 MHz |
| Transmission Power |
Maximum 18 dBm |
| Transmission Distance (LoS) |
300 m (125 kbps, output power 18 dBm) |
| Antenna |
| Dimensions (mm) |
108 mm x 10 mm |
| Power |
| Input Range |
+10 VDC ~ +30 VDC |
| Consumption |
1.2 W @ 24 VDC (not include XV board) |
| Mechanical |
| Dimensions (mm) |
158 mm x 38 mm x 97 mm |
| Installation |
DIN-Rail |
| Environment |
| Operating Temperature |
-25℃ ~ +75℃ |
| Storage Temperature |
-30℃ ~ +80℃ |
| Humidity |
10 to 90% RH (Non-condensing) |
Download
Datasheet
Documents
Ordering Information
| RFU-IO-920 CR |
920 MHz RF Wireless I/O Module, Single-Slot I/O Expansion Board (RoHS) |
