ADLINK NuDAM-6100 Series I/O Module Deployment and Protocol Optimization

00129~00160 Safety Value (DO) Reading and Writing Coil

00161~00192 Power on value (DO) read/write coil

00257 protocol selection (0=ASCII, 1=Modbus) read-write hold register

00261 Host watchdog enables read-write coil

00270 watchdog timeout flag read-write coil

00272 Loading Factory Calibration Writing Coil

02208 CRC check enable read-write hold register

40481~40482 firmware version read-only hold register

40483~40484 module name read-only hold register

40485 module address (1-247) read/write hold register

40486 baud rate (3-10) read/write hold register

40489 watchdog timeout value (unit: 0.1s) read/write hold register

Attention: ND-6117 analog input uses 30001~30008 (input register), range code uses 40201~40208 (hold register). ND-6124 analog output uses 40001~40004, type code uses 40257~40260, and slope uses 40289~40292.

Common troubleshooting

Possible causes and solutions for the fault phenomenon

Module communication unresponsive, baud rate mismatch; Address error; Reverse polarity of the bus; Enter the Initiat mode (address 00, baud rate 9600) without adding terminal resistance and search again; Check the DATA+/- wiring; Add 120 Ω resistors at both ends

Failed to modify configuration without entering the Initiat mode, or physically short circuited the Initiat pin and restarted due to soft Initiat timeout, or set enough timeout using soft Initiat

Simulate input reading jump and input source noise; Not using shielded wires; Improper range setting enables internal filtering of the module (60Hz/50Hz suppression); Switch to differential mode (channel 6/7 jumper)

Simulate no change in output, watchdog timeout enters safe value; Emergency DI activation reads the status of the watchdog and clears it; Check the emergency DI input level

Unable to communicate after protocol switch and module not restarted; Power off and restart using ASCII command under Modbus; Switch to Modbus command or switch again

The firmware version is too low and does not support certain functions. Some commands are only D02.01 and above. Please check the version through $AAF. If you need to upgrade, please contact technical support