Name Release Date Size MD5
Serial Control PLUS Manual v5.0 Aug 24 2020 534.9 KB 3ea5b757505385f6f33a7c4c0e89b358

Serial Control Plus is one of the applications from the all-in-one update project that comes pre-installed on your JNIOR. You only need to enable the Serial Control Plus application to start on boot. In the JNIOR WebUI, in the application section of the configuration tab clicking the checkbox next to Serial Control Plus will enable it to run on boot. You’ll need to restart the JNIOR for this to take affect.

Configuration tab for JNIOR Web Page

Serial Control Plus runs on the JNIOR and allows the user to interact with the JNIOR I/O via the serial port or the Ethernet port using simple ASCII commands.  The user can control the relay outputs (on, off, pulse) and receive the status of the digital inputs and relay outputs (on, off) and counters via the serial port or Ethernet port. 

Example commands include:

C1        - Close relay output 1
O234      - Open relays 2, 3 and 4 
DIN1=1    -  Input 1 is 'on'         ROUT1=1  - Relay output 1 is 'on'  


For the Serial Control Plus application, the user’s device must be able to utilize the command structure for the JNIOR defined in the Serial Control Plus manual. Utilization of the serial port can be used in conjunction with another application utilizing the Ethernet port. 

A device on the network can connect to the JNIOR through Serial Control Plus by either connecting to the TCP port 9202, or by connecting to the default serial settings of :

  • Baud Rate: 9600
  • Data Bits: 8
  • Stop Bits: 1
  • Parity: No Parity

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