Publication ERSC-1521 Rev 1.0 – February 2019
Connecting to Rockwell PLCs
PLC I/O AOI TAG DESCRIPTIONS
The following chart lists each tag made available in the Ai2_PLCIO_419_5xx AOI along with the register reference
from the ConveyLinx-Ai2 PLC Developer’s Guide version 1.0.
Tag Name Data Type
Developers
Guide Register
Bit Description
I_ConveyStopByLostConnection BOOL 4:0020 6
Stop active due to lost communication
connection
Stop active due to Stop Command from PLC
I_ConveyStopByPLCDisconnect
Stop active due to lost PLC connection
I_ConveyStopByRemoteModule
Stop active on another module in Stop Group
I_Current_Left_MDR REAL 4:0055
Current Draw of Left MDR in Amps
I_Current_Right_MDR REAL 4:0079
Current Draw of Right MDR in Amps
I_Dig_Mtr_Over_Cur_Left BOOL 4:0060 14
Left: More than 1A detected on one or more
outputs
I_Dig_Mtr_Over_Cur_Right BOOL 4:0084 14
Right: More than 1A detected on one or more
outputs
Left: Short Circuit Error on one or more outputs
I_Dig_Mtr_Short_Cir_Right
Right: Short Circuit Error on one or more outputs
Frequency of Left MDR in Hz
Frequency of Right MDR in Hz
Module Heartbeat, 2s On / 2s Off
Local Outputs are Enabled
I_Sensor_Detect_Left_Port
Sensor Detected on Left Pin 4
I_Sensor_Detect_Right_Port
Sensor Detected on Right Pin 4
Left Sensor Port Pin 2 Energized if used as input
Left Sensor Port Pin 4 Energized
Right Sensor Port Pin 2 Energized if used as input
Right Sensor Port Pin 4 Energized
1 = Last Servo Run Command Complete
I_Servo_CmdComplete_Right
1 = Last Servo Run Command Complete
1 = Running to Pulse Command Position
1 = Running to Pulse Command Position
Signed Integer Value for Position from "0"
Signed Integer Value for Position from "0"
Value in mm/sec for MDR or RPM x 10 for PGD
I_Speed_Left_Max BOOL 4:0507 14
Left Motor Set Speed is Greater Than Motor
Maximum
I_Speed_Left_Min BOOL 4:0507 15
Left Motor Set Speed is Less Than Motor
Minimum
Value in mm/sec for MDR or RPM x 10 for PGD
I_Speed_Right_Max BOOL 4:0508 14
Right Motor Set Speed is Greater Than Motor
Maximum
I_Speed_Right_Min BOOL 4:0508 15
Right Motor Set Speed is Less Than Motor
Minimum
Left Motor Temperature Reading in °C
Right Motor Temperature Reading °C
Left On Board Temperature Reading °C
Right On Board Temperature Reading °C
I_Tracking_UpZn DINT
4:0139 (MSW)
4:0140 (LSW)
-
Tracking Hi Word for Load Discharged from
Adjacent Upstream Module