Node-RED nodes to read electrical measures from Siemens SENTRON series over Modbus TCP/IP
npm install node-red-contrib-siemens-sentronAlternatively, run the following command in your Node-RED user directory - typically ~/.node-red on Linux or %HOMEPATH%\.nodered on Windows
npm install node-red-contrib-siemens-sentron
You must also install node-red-contrib-modbus directly from the Manage Palette menu in the Node-RED interface or run the following command in your Node-RED user directory
npm install node-red-contrib-modbus
measure node to configure which information you want to request from the device.Wire the output of the measure to the input of the Modbus Flex Getter from 'node-red-contrib-modbus' modules.
Enable check box Keep Msg Properties in the Modbus Flex Getter properties.
getter node to convert the values from the modbus response into human readable numbers.Wire the second output of the Modbus Flex Getter to the input of the getter.
json
[{"id":"ac42dc3cfc737a41","type":"tab","label":"Siemens SENTRON","disabled":false,"info":"","env":[]},{"id":"ba83206eb52d59f2","type":"inject","z":"ac42dc3cfc737a41","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"10","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":190,"y":180,"wires":[["9edbc9242d918b94","209122aaf081e90d"]]},{"id":"9edbc9242d918b94","type":"measure","z":"ac42dc3cfc737a41","name":"","unitId":"1","device":"pac2200","deviceProtection":"5st3com","data":"voltageLL-avg","x":400,"y":140,"wires":[["0a2ba7e6c1721f97"]]},{"id":"56cf05bc9733a65f","type":"getter","z":"ac42dc3cfc737a41","name":"","unitId":"","data":"","x":790,"y":140,"wires":[["be3da888d87fa30f"]]},{"id":"0a2ba7e6c1721f97","type":"modbus-flex-getter","z":"ac42dc3cfc737a41","name":"","showStatusActivities":false,"showErrors":false,"logIOActivities":false,"server":"50fc5c2a64d40a1e","useIOFile":false,"ioFile":"","useIOForPayload":false,"emptyMsgOnFail":false,"keepMsgProperties":true,"x":590,"y":140,"wires":[[],["56cf05bc9733a65f"]]},{"id":"be3da888d87fa30f","type":"debug","z":"ac42dc3cfc737a41","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":950,"y":140,"wires":[]},{"id":"209122aaf081e90d","type":"measure","z":"ac42dc3cfc737a41","name":"","unitId":"1","device":"pac2200","deviceProtection":"5st3com","data":"current-avg","x":400,"y":220,"wires":[["e1621552b6017614"]]},{"id":"b1dcc45732697c41","type":"getter","z":"ac42dc3cfc737a41","name":"","unitId":"","data":"","x":790,"y":220,"wires":[["3ece6051729284e5"]]},{"id":"e1621552b6017614","type":"modbus-flex-getter","z":"ac42dc3cfc737a41","name":"","showStatusActivities":false,"showErrors":false,"logIOActivities":false,"server":"50fc5c2a64d40a1e","useIOFile":false,"ioFile":"","useIOForPayload":false,"emptyMsgOnFail":false,"keepMsgProperties":true,"x":590,"y":220,"wires":[[],["b1dcc45732697c41"]]},{"id":"3ece6051729284e5","type":"debug","z":"ac42dc3cfc737a41","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":950,"y":220,"wires":[]},{"id":"358e4fca54d8b667","type":"comment","z":"ac42dc3cfc737a41","name":"PAC2200","info":"","x":400,"y":100,"wires":[]},{"id":"50fc5c2a64d40a1e","type":"modbus-client","name":"","clienttype":"tcp","bufferCommands":true,"stateLogEnabled":false,"queueLogEnabled":false,"tcpHost":"192.168.1.113","tcpPort":"502","tcpType":"DEFAULT","serialPort":"/dev/ttyUSB","serialType":"RTU-BUFFERD","serialBaudrate":"9600","serialDatabits":"8","serialStopbits":"1","serialParity":"none","serialConnectionDelay":"100","serialAsciiResponseStartDelimiter":"0x3A","unit_id":"1","commandDelay":"1","clientTimeout":"1000","reconnectOnTimeout":true,"reconnectTimeout":"2000","parallelUnitIdsAllowed":true}]
``| Measure | Units | Type |
| ---------------------------------- | --------------------- | --------------- |
| Voltage L1-N | V | Float 32 |
| Voltage L2-N | V | Float 32 |
| Voltage L3-N | V | Float 32 |
| Voltage L1-L2 | V | Float 32 |
| Voltage L2-L3 | V | Float 32 |
| Voltage L3-L1 | V | Float 32 |
| Current L1 | A | Float 32 |
| Current L2 | A | Float 32 |
| Current L3 | A | Float 32 |
| Apparent power L1 | VA | Float 32 |
| Apparent power L2 | VA | Float 32 |
| Apparent power L3 | VA | Float 32 |
| Active power L1 | W | Float 32 |
| Active power L2 | W | Float 32 |
| Active power L3 | W | Float 32 |
| Reactive power L1 | var | Float 32 |
| Reactive power L2 | var | Float 32 |
| Reactive power L3 | var | Float 32 |
| Power factor L1 | - | Float 32 |
| Power factor L2 | - | Float 32 |
| Power factor L3 | - | Float 32 |
| Frequency | Hz | Float 32 |
| Average voltage L-N | V | Float 32 |
| Average voltage L-L | V | Float 32 |
| Average current | A | Float 32 |
| Total apparent power | VA | Float 32 |
| Total active power | W | Float 32 |
| Total reactive power | var | Float 32 |
| Total power factor | - | Float 32 |
| Neutral current | A | Float 32 |
| Active energy import | Wh | Float 32 |
| Reactive energy import | varh | Float 32 |
| Active energy export | Wh | Float 32 |
| Reactive energy export | varh | Float 32 |
| Active energy import tariff 1 | kWh | Double |
| Active energy import tariff 2 | kWh | Double |
| Active energy export tariff 1 | kWh | Double |
| Active energy export tariff 2 | kWh | Double |
| Reactive energy import tariff 1 | kvarh | Double |
| Reactive energy import tariff 2 | kvarh | Double |
| Reactive energy export tariff 1 | kvarh | Double |
| Reactive energy export tariff 2 | kvarh | Double |
| Apparent energy tariff 1 | kVAh | Double |
| Apparent energy tariff 2 | kVAh | Double |
List of 7KN Powercenter 1000 meter data:
| Measure | Units | Type |
| ---------------------------------- | --------------------- | --------------- |
| Current temperature | °C | Float 32 |
| Average temperature | °C | Float 32 |
| Actual current L | A | Float 32 |
| Average current L | A | Float 32 |
| Maximum current L | A | Float 32 |
| L-N voltage | V | Float 32 |
| Line frequency | Hz | Float 32 |
| Active power L | W | Float 32 |
| Apparent power L | VA | Float 32 |
| Reactive power L | var | Float 32 |
| Power factor L | - | Float 32 |
| Imported active energy | kWh | Float 64 |
| Exported actie energy | kWh | Float 64 |
| Imported reactive energy | kvarh | Float 64 |
| Exported reactive energy | kvarh | Float 64 |
| Protection device status | - | Unsigned int 16 |
| Alarms status | - | Unsigned int 32 |
| Mechanical operating cycles | - | Float 32 |
| Tripping operations | - | Float 32 |
| Short-circuit trips | - | Float 32 |
Set unit IDs (1 .. 24) for paired circuit protection devices.
Compare the values obtained with the measures on the installed device and report any bugs such as:
+ measured value error
+ measured value format
+ unit of measure
These modules have been developed and tested on:
+ SENTRON PAC2200
+ 7KN Powercenter 1000 with 5SL6 COM