Advanced, XL Family

RIO-9F Registers

Coils (0XXXX)

 DO1
 DO2
 DO3

Discrete Inputs (1XXXX)

 DI1
 DI2
 DI3
 AI1
 AI2
 AI3
 AI4

Input Registers (3XXXX)

 Channel 1 0=0mA, 4095=20mA
 Channel 2 0=0mA, 4095=20mA
 Channel 3 0=0mA, 4095=20mA
 Channel 4 0=0mA, 4095=20mA
 Supply 4095=FS
 Channel 1 0=4mA, 32767=20mA 11 
 Channel 2 0=4mA, 32767=20mA 12 
 Channel 3 0=4mA, 32767=20mA 13 
 Channel 4 0=4mA, 32767=20mA 14 
 Channel 1 0=0mA, 32767=20mA 21 
 Channel 2 0=0mA, 32767=20mA 22 
 Channel 3 0=0mA, 32767=20mA 23 
 Channel 4 0=0mA, 32767=20mA 24 
 Supply 32767=FS 25 
 Channel 1 0=4mA, 4095=20mA 31 
 Channel 2 0=4mA, 4095=20mA 32 
 Channel 3 0=4mA, 4095=20mA 33 
 Channel 4 0=4mA, 4095=20mA 34 
 Channel 1 raw, for cal. only 41 
 Channel 2 raw, for cal. only 42 
 Channel 3 raw, for cal. only 43 
 Channel 4 raw, for cal. only 44 
 Supply raw, for cal. only 45 

Holding Registers (4XXXX)

 DI1Count
 DI2Count
 DI3Count
 AI1Count
 AI2Count
 AI3Count
 AI4Count
 Debounce in ms 11 
 BaudDiv baud rate divisor 21 
 SerialMode parity & stop bits 22 
 SerialTimeout default=5 23 
 RespDelay in ms 24 
 LEDControl 0=off, 1=on 31 
 ADCOffset1 signed 41 
 ADCOffset2 signed 42 
 ADCOffset3 signed 43 
 ADCOffset4 signed 44 
 ADCScale1 4095=unscaled 51 
 ADCScale2 4095=unscaled 52 
 ADCScale3 4095=unscaled 53 
 ADCScale4 4095=unscaled 54 
 ADCScale5 4095=unscaled 55 
 Pulse1 in ms 61 
 Pulse2 in ms 62 
 Pulse3 in ms 63 
 BCastReset see below 71-73 
 Address 74 
 DI1LongCount deprecated 81-82 
 DI2LongCount deprecated 83-84 
 DI3LongCount deprecated 85-86 
 SerialNum 91-92 
 RadioSNum radio serial number 93-94 
 LastCalTimestamp Unix format 101-102 
 CalInitials 103-104 
 LastUpdateTimestamp Unix format 105-106 
 DI1LongCount 111-112 
 DI2LongCount 113-114 
 DI3LongCount 115-116 
 AI1LongCount 117-118 
 AI2LongCount 119-120 
 AI3LongCount 121-122 
 AI4LongCount 123-124 

Broadcast Reset

The Modbus address of a RIO-9F device can be changed by broadcasting (i.e. sending to Modbus address 0) a write to holding registers 71-73.

The write should be done with a single, Write Multiple Registers command. In the first two registers (most signifigant word followed by least signifigant word), you should write the device's serial number. In the last register, you should write the new Modbus address.

As per the Modbus standard, the RIO device will not respond to this broadcast. Immediately after receipt, the RIO device will begin responding to requests made of the new address, however, this change will only be permanent if the DIP switches have all been set the same direction.