Sergei Troizky

This machine is now comissioned with no problems.

I would also assume so, to be on the safe side. But I've seen working equipment with 4 modules between the power supply and CPU. I need the same for my project this time, so looking for more definite answer. It's ridiculous that such a simple thing is not specified unambiguously in a technical manual.

The 1769-SG001 manual says: "Check the specification table of each module for the power supply distance rating. This rating indicates how many slot  positions the module can be from the power supply." The CPU power supply distance rating is "4 modules". Does this mean 4 modules are allowed between the CPU and power supply? Or the CPU to be maximum the 4th slot from the power supply?

The I182E "NX-Series I/O" manual mentions "Unwired terminal current capacity" in the unit specs. What is the meaning of this parameter?  

In my opinion, 20 instructions do not worth organizing a loop, not to mention FB. Configure the output instructions to be shown horizontally, and 19-instruction rung will be of reasonable size. And each register value will be on the screen for immediate monitoring.

I have a protected task in CJ2M, and have to download by tasks. However, some unprotected task selection boxes for transfer are greyed, and cannot be selected, while other unprotected tasks are selectable. What may be a reason of not allowing unprotected task transfer. All unprotected tasks were never protected. No UM protection.

I would try Start code (( (0x2828) and End code )) (0x2929).

STR8 converts a 8-digit hexadecimal number to ASCII string. Convert DINT to BCD first, using BDSL instruction.

ANdrejP, If you are connected to the PLC, its IP address is known. If the NODE selectors are in discrepancy, PLC is in error. If no such error, the NODE selectors are set exactly to the last octet of the IP address, keeping in mind that the IP address is decimal, while the selectors are hex. For FINS node number, which is typically the same as the last octet of the IP address, but not necessarily, open I/O table, double-click the unit, upload the port setup from the unit and see the IP address table under the FINS/UDP tab.

The OP clearly mentioned INT. And since this is signed 16-bit integer, it tops at (2^15-1)=+32767. Unsigned 16-bit would top at (2^16-1)=65535.

Every time the summarizing register reaches certain threshold (the larger, the better), just divide it and the seconds by 2. The average remains the same, the measurement resumes correctly. The register will never overfill.

I will repeat Pturmel's question: Why are you using BCD? BCD was useful during the era of 7-segment indicators and thumbwheel switches, and is supported by Omron for backwards compatibility with old projects or PLCs. There is no reason nowadays to use BCD representation. Go binary mode.  

Since there are no SBN/GSBN instructions in ST?