Protocol | Modbus RTU |
Communications Interface | RS-232, RS-485, or wireless |
Data Interface Rate | 2400, 4800, 9600, 19.2k, or 56k baud |
Data Interface Parity | none, even, or odd |
Handshaking | hardware (RTS/CTS) |
Temperature | -30 to +70 °C |
Error Detection | 16-bit CRC |
Digital Out Switch | 200mA, 28V max. |
Digital Input Range | 28V max., Form A |
Pulse Counting | 300pps max. |
Pulse Count Depth | 32-bit (>4 billion counts) |
Pulse Width | 1ms min. |
Dig. In Debounce | 0 to 255 ms |
Analog Input Range | 0 to 20mA, 28V max. |
Analog Output Range | 4 to 20mA, 28V max. |
ADC Accuracy | better than 1%, 0.2% typ. |
DAC Accuracy | better than 1%, 0.2% typ. |
Input Voltage (standard) | 9 to 15 VDC |
Input Voltage (-28 models) | 10 to 28 VDC |
Input Current | 65 to 150 mA |
Size | 6.25" x 3.50" x 2.25" |
Mounting | Panel or 1.5" DIN rail |
Status | blinks green during normal operation* |
Busy | blinks yellow while receiving data |
Transmit | blinks red while transmitting data |
Error | lit red in mirror mode when communication is lost |
DO1, DO2, DO3, DO4 | lit green while DO-n output is on** (pulled to ground) |
DI1, DI2, DI3, DI4 | lit yellow while DI-n input is on (pulled to ground) |
* Output will be solid-on during firmware updates.
** Output will blink green rapidly in failsafe mode.
The RIO-15C has one external switch. Pushing the reset button will quickly reset the device. Holding the reset button for 15 seconds or more will reset the serial mode to 9600 baud and no parity.
The reset button is disabled during firmware updates to protect the unit.
The RIO-15C has six, on-board jumpers; four near the analog input, connector pins and two near the analog output, connector pins. These jumpers control whether the analog signals are currents or voltages.
By default, the four jumpers near the analog input, connector pins will be shunted (shorted with small, plastic connectors). This selects an input range of 0 - 20mA. Removing these shunts selects an input range of 0 - 5V.
By default, the two jumpers near the analog output, connector pins will not be shunted. This selects an output range of 4 - 20mA. Placing shunts on these jumpers will select an output range of 1 - 5V (into a load of at least 10kΩ).