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About SvjatoslavsKrasnikovs

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  1. I'll try to reproduce the experiment ASAP. I do not have the MJ10-22-CS25 though. I have a MJ10-22-CS10 can I use it in the same way ? Thank You.
  2. Hi. Finally found a 2W 180 ohm resistor. Connected everything according to the schematic above, and well, nothing happens. The 2W resistor is also overheating over the time.
  3. Heh, seemed that my potentiometer is simply not powerful enough (burned it). I'll find a "larger" resistor, then retry. I'll post full experiment report when I'm done.
  4. Thank You so much for trying to help me. I've sketched a rough connection schematic, according to what You've suggested. Is it right ? On the JZ20-PRG to JZ10-22-CS10 side, the connection is standard (through MJ20-CB200 cable). However, after the DB9 of MJ10-22-CS10 I'm braking the connector (DB9) into individual cables (on a breadboard). The +24V will be used from the PSU (I'll use bench PSU , with GND connected).
  5. Thank You for the reply. In the case of Samba 35 - what's the least expensive RD485 add-on module I'd need ? In the case of M91 - do I need any RS485 add-on modules for those ?
  6. Hi, I'm running an Arduino-based home automation system. My custom-made Arduino clones are communicating over a RS485 network (configured as 8N1) using Modbus RTU protocol. Thing is that I want to have a reliable, industrial-grade PLC in the network, in order to monitor my Arduino-based sub modules. Basically I need a cost efficient Unitronics PLC capable of connecting to RS485 network, The ladder program is expected to be non memory hungry, also I'm fine with good old 2 line display. The PLC must be able to connect to the RS485 network without the use of any extension modules/communication m
  7. Thank You for the reply. Well, I do not have an access to MJ20-RS module at the moment. All I have is MJ20-PRG, MJ20-CB200 and MJ10-22-CS10. If I'll power up pins 1 and 6 of a MJ20-PRG through MJ10-22-CS10 (just like in a picture attached) will I be able to use my MJ20-PRG as a RS232 module ? Or do I need to change the schematic in any way (attach series resistor to +5V line, etc.) ? Thank You
  8. Hi. I have a Unitronics JZ20-R16 (Jazz2) controller I’ve programmed to run a simple air ventilation system in my house (The thing is running great btw.). I also have a self made Arduino based data logger (I use it to monitor and log my energy consumption, temperature, etc.) I’m not building those things or mass producing, Arduino electronics is my hobby - I just use it to stay sharp. So I decided to cross-integrate my air vent. Controller with my data logging unit (I want to see the status of my air vent. Controller unit on Arduino). So for starters the task is to simply send a 16b
  9. Hi, I am facing troubles while trying to log and later display time using Jazz2 controller. So, I'm trying to make an error log. When the error occurs I store current content of SI31 (RTC time) to MI (MI33 in this case - so far it's working). Then in order to display the error I pass MI33 content to MI41 (MI41 is linked to Time Function variable (in CT format) that is then displayed on HMI) . You can see the whole process in images below. The problem is that in the end, the content of MI41 (decimal 1500 - which I corresponds to 15:00 time) is then displayed as 05:DC on the HMI display. I
  10. Hi, I'm learning ladder by the aid of Unitronics JZ10-11-R10 PLC. While writing my 1st program I've ran into issue. The thing is that I can not find a way to input MB value from HMI. Are there any ways to do it ? Thank You
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