Monitoring & Operating the Unit ......................................................................................................... 5-16
Monitoring Module & I/O Status .................................................................................................. 5-17
Monitoring Connection Status ..................................................................................................... 5-17
Exiting Safe Mode Status ............................................................................................................ 5-18
Maintaining the Unit .......................................................................................................................... 5-18
Backing up Configuration Files .................................................................................................... 5-18
Updating the Firmware ............................................................................................................... 5-19
Restarting the Unit .................................................................................................................... 5-20
Loading Factory Default Settings ................................................................................................. 5-20
6. Tutorials ............................................................................................................................................ 6-1
How to Use Modbus TCP to Connect to the ioThinx 4510 Series ................................................................ 6-2
Using Modbus TCP via Modbus Poll ................................................................................................ 6-2
How to Use RESTful API to Connect to the ioThinx 4510 Series ................................................................. 6-7
Using RESTful API via Postman ..................................................................................................... 6-7
Send a GET request and a PUT request .......................................................................................... 6-9
How to Use MQTT to Connect to the ioThinx 4510 Series ....................................................................... 6-11
Broker Settings on the Computer ................................................................................................ 6-11
Set Up MQTT on the ioThinx 4510 ............................................................................................... 6-11
Publisher and Subscriber Settings ................................................................................................ 6-14
How to Connect ioThinx 4510 to an MQTT Broker over TLS .................................................................... 6-16
Broker Settings on the Computer ................................................................................................ 6-16
Client (publisher) setting ............................................................................................................ 6-20
Client (subscriber) setting .......................................................................................................... 6-20
A. Appendix ........................................................................................................................................... A-1
Network Port Usage ............................................................................................................................ A-2
Modbus/TCP Slave Rules ...................................................................................................................... A-2
Supported Function Code ............................................................................................................. A-2
Exception Code ........................................................................................................................... A-2
System Registers ........................................................................................................................ A-2
45MR-1600 (-T), 16 DIs Registers ................................................................................................. A-3
45MR-1601 (-T), 16 DIs Registers ................................................................................................. A-4
45MR-2404 (-T), 4 Relays Registers .............................................................................................. A-4
45MR-2600 (-T), 16 DOs Registers ................................................................................................ A-5
45MR-2601 (-T), 16 DOs Registers ................................................................................................ A-5
45MR-2606 (-T), 8 DIs, 8 DOs Registers ........................................................................................ A-6
45MR-3800 (-T), 8 AIs Registers ................................................................................................... A-7
45MR-3810 (-T), 8 AIs Registers ................................................................................................... A-7
45MR-4420 (-T), 4 AOs Registers .................................................................................................. A-8
45MR-6600 (-T), 6 RTDs Registers ................................................................................................ A-8
45MR-6810 (-T), 8 TCs Registers .................................................................................................. A-9
45MR-7210(-T), System and Field Power Input Registers ................................................................. A-9
SNMP Rules ....................................................................................................................................... A-9
RESTful API Rules ............................................................................................................................. A-10
Supported Request Method ......................................................................................................... A-10
GET Request Components .......................................................................................................... A-10
PUT Request Components .......................................................................................................... A-10
RESTful API List ........................................................................................................................ A-10
Exception Code ......................................................................................................................... A-12
MQTT Rules ..................................................................................................................................... A-13
Publish Topic ............................................................................................................................ A-13
Subscribe Topic ......................................................................................................................... A-16
Troubleshooting ................................................................................................................................ A-17
Forgot username & password ...................................................................................................... A-17
Forgot IP address of the unit ...................................................................................................... A-17
Failed to update firmware ........................................................................................................... A-18
Failed to update configuration ..................................................................................................... A-18
Failed to access the unit through IP address & IOxpress ................................................................. A-19
Failed to enter System Ready Mode ............................................................................................. A-19
Import Self-Signed Certificate ............................................................................................................ A-20
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