El Buga Posted September 24, 2020 Report Share Posted September 24, 2020 Hi, i have a PT100 and it was working normally, but yesterday i turned off the PLC and when i turned on agan the display in the HMI (variable,numeric) did not showed me numers, just "**.*", i thought the wires were disconected or something but no, i tried with another plc (are the same, SM35-J-RA22) and it works, with the same PT100 and program, i don't know what i have to do, sorry for my english xD Quote Link to comment Share on other sites More sharing options...
MVP 2021 Joe Tauser Posted September 25, 2020 MVP 2021 Report Share Posted September 25, 2020 The asterisks mean the data value is larger than the digits configured on the HMI. If you go online with the PLC, what is the value in the MI register assigned to that input? Joe T. Quote Link to comment Share on other sites More sharing options...
El Buga Posted September 25, 2020 Author Report Share Posted September 25, 2020 9 hours ago, Joe Tauser said: The asterisks mean the data value is larger than the digits configured on the HMI. If you go online with the PLC, what is the value in the MI register assigned to that input? Joe T. The value is 32767, but doesn't have sense because the other PT100 port have the same value (not used), l think plc is not reading PT100 ohms, but again, with other PLC, the same program and PT100 it does Quote Link to comment Share on other sites More sharing options...
MVP 2021 Flex727 Posted September 25, 2020 MVP 2021 Report Share Posted September 25, 2020 The value 32767 is an error value to tell you that the input is greatly out of range. Quote Link to comment Share on other sites More sharing options...
El Buga Posted September 25, 2020 Author Report Share Posted September 25, 2020 16 minutes ago, Flex727 said: The value 32767 is an error value to tell you that the input is greatly out of range. i measured the PT100 (connected in the plc) and marks 110 ohms, it can be a continuity problem in the connections ports? Quote Link to comment Share on other sites More sharing options...
MVP 2021 Joe Tauser Posted September 25, 2020 MVP 2021 Report Share Posted September 25, 2020 32767 is an open circuit. You have a wiring problem, the jumpers are set wrong, or the PLC is bad. In that order. Joe T. Quote Link to comment Share on other sites More sharing options...
El Buga Posted September 25, 2020 Author Report Share Posted September 25, 2020 2 hours ago, Joe Tauser said: 32767 is an open circuit. You have a wiring problem, the jumpers are set wrong, or the PLC is bad. In that order. Joe T. the wires and jumpers are well connected, what could be wrong with the PLC? Quote Link to comment Share on other sites More sharing options...
MVP 2021 kratmel Posted September 25, 2020 MVP 2021 Report Share Posted September 25, 2020 If you have two similar PLC - then you can replace IO board for test what is wrong - PLC program or PLC IO hardware. By the way - you have two PT 100 input on SM35-J-RA22- do you test the same PT100 on another one? P.S. Maybe replace green connector is the solution? Quote Link to comment Share on other sites More sharing options...
AlexUT Posted September 25, 2020 Report Share Posted September 25, 2020 Hi, 1. Please check jumpers for good contact. *Take jumpers from other PLC for test. 2. It is not recommended to exchange board. Upside board store all calibration data for upside board. Downside board store all calibration data for upside board. B.R. Quote Link to comment Share on other sites More sharing options...
El Buga Posted September 25, 2020 Author Report Share Posted September 25, 2020 43 minutes ago, kratmel said: If you have two similar PLC - then you can replace IO board for test what is wrong - PLC program or PLC IO hardware. By the way - you have two PT 100 input on SM35-J-RA22- do you test the same PT100 on another one? P.S. Maybe replace green connector is the solution? i replaced the IO board and doesn't work, i have 4 PT100 and doesn't work with any , i just hace one connected with the PLC but i changed the PT100 input and was the same prpblem :c Quote Link to comment Share on other sites More sharing options...
MVP 2021 kratmel Posted September 26, 2020 MVP 2021 Report Share Posted September 26, 2020 On another SAMBA you can use the same program with the same sensors without problem? Then maybe something wrong with PLC... I recommend: replace battery, init & reset PLC, download blank project, download your project --- Result? Last chance - replace firmware via visilogic... P.S. You change green connector to another one for test? P.P.S 9 hours ago, AlexUT said: 2. It is not recommended to exchange board. It is only temporary for find what is wrong. Quote Link to comment Share on other sites More sharing options...
AlexUT Posted September 26, 2020 Report Share Posted September 26, 2020 Please show how you set all Input jumpers and how you wired PT100 sensor. Hope it is 3 wires. Use minimum configuration for test - only 2 AI. B.R. Quote Link to comment Share on other sites More sharing options...
El Buga Posted September 26, 2020 Author Report Share Posted September 26, 2020 39 minutes ago, AlexUT said: Please show how you set all Input jumpers and how you wired PT100 sensor. Hope it is 3 wires. Use minimum configuration for test - only 2 AI. B.R. yes is a 3 wires PT100, two of them to 7 and 8 inputs and common to 4 Quote Link to comment Share on other sites More sharing options...
El Buga Posted September 26, 2020 Author Report Share Posted September 26, 2020 6 hours ago, kratmel said: On another SAMBA you can use the same program with the same sensors without problem? Then maybe something wrong with PLC... I recommend: replace battery, init & reset PLC, download blank project, download your project --- Result? Last chance - replace firmware via visilogic... P.S. You change green connector to another one for test? P.P.S It is only temporary for find what is wrong. how can i reset the PLC? i found switch to factory boot in visilogic but the PLC screen just turned red Quote Link to comment Share on other sites More sharing options...
El Buga Posted September 26, 2020 Author Report Share Posted September 26, 2020 6 hours ago, kratmel said: On another SAMBA you can use the same program with the same sensors without problem? Then maybe something wrong with PLC... I recommend: replace battery, init & reset PLC, download blank project, download your project --- Result? Last chance - replace firmware via visilogic... P.S. You change green connector to another one for test? P.P.S It is only temporary for find what is wrong. and yes, i replaced the green connector Quote Link to comment Share on other sites More sharing options...
MVP 2021 Flex727 Posted September 26, 2020 MVP 2021 Report Share Posted September 26, 2020 1 hour ago, El Buga said: how can i reset the PLC? In VisiLogic, go to Connection / Communication & OS / click the second tab / click the button for Initialize & Reset. Quote Link to comment Share on other sites More sharing options...
El Buga Posted September 30, 2020 Author Report Share Posted September 30, 2020 On 9/26/2020 at 10:25 AM, Flex727 said: In VisiLogic, go to Connection / Communication & OS / click the second tab / click the button for Initialize & Reset. didn't work, actually i changed de input to ohms and nothing, same error Quote Link to comment Share on other sites More sharing options...
MVP 2021 Ausman Posted September 30, 2020 MVP 2021 Report Share Posted September 30, 2020 Please get a 250 Ω pot and place that in your circuit instead of the PT100, and see what happens with varying it. Quote Link to comment Share on other sites More sharing options...
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