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en:sw:02-apis:02-modbus-tcp [2021/05/06 07:37]
avsetula
en:sw:02-apis:02-modbus-tcp [2023/07/25 09:15] (current)
avsetula
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 <WRAP group> <WRAP group>
 <WRAP half column 81%> <WRAP half column 81%>
-Modbus TCP is standard interface to interact with the IOs of Unipi PLCs. Each PLC has its own mapping of I/O to a Modbus Register or Coil which can be downloaded from the [[files:​products:​00-start|Products section.]]+Modbus TCP is standard interface to interact with the IOs of Unipi units. Each unit has its own mapping of I/O to a Modbus Register or Coil which can be downloaded from the [[files:​products:​00-start|Products section.]]
 </​WRAP>​ </​WRAP>​
 <WRAP half column 15%> <WRAP half column 15%>
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 1Wire devices are not mapped to Modbus TCP and have to be implemented differently,​ eg. using OWFS. 1Wire devices are not mapped to Modbus TCP and have to be implemented differently,​ eg. using OWFS.
 </​WRAP>​ </​WRAP>​
 +
 +
 +===== Storage life status =====
 +There are also registers indicating storage status for all Unipi units (except Unipi 1.1) that are available on the Modbus TCP server.
 +  * <​html><​span class="​kbBlueText">​Erase cycles used [%]</​span></​html>​ -> indicates the number of memory erase cycles compared to the maximum cycles (in percent)
 +  * <​html><​span class="​kbBlueText">​Good blocks [%]</​span></​html>​ -> indicates the number of blocks that are all right (in percent)
 +
 +For Neuron units, there is also the number of power cycles (on/off) available with the current SD card, or the name of the card manufacturer'​s detection. For Neuron units, only a limited selection of SD cards is supported for these features.
 +
  
 ===== Systemd service ===== ===== Systemd service =====
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 </​code>​ </​code>​
  
-To make the change permanent, modify the default configuration file **/​etc/​default/​unipi-modbus-tools** and restart the service by <​code>​systemctl restart unipitcp</​code>​+To make the change permanent, modify the default configuration file **/​etc/​default/​unipitcp** and restart the service by <​code>​systemctl restart unipitcp</​code>​