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Software rarely has Modbus maps for the equipment; the manual for the device normally has the Modbus map, if it's not separate communications manual. The 735 is a GE Multilin product. The 735 / 737 Feeder Protection Relay Instruction Manual has the Modbus memory map. The manual is listed...

Can't change a node ID address value that is not assigned to a Modbus register.

What is a ADPRW or a ddrvi instruction? That's not part of conventional Modbus terminology.

Some of your questions are answered in Kepware's Youtube tutorial here, starting at 5:00 minutes:

That's a 62% error. The K-Factor is the number of pulses for every unit of product volume passing through the meter. You're using the wrong K factor to calculate the flow rate.

I thought I'd skim read the paper but Google can't find it. So I'm clueless about what a fixed speed rotation turbine meter is. Why would anyone mess with an efficient means of flow measurement for clean liquids, ie, a turbine meter. Probably a marketing white paper trying to seduce the...

No, not everything is OPC UA. I know of two places using a version of iFix that is still running OPC DA V2 because the mandatory Microsoft update for the DCOM security component is approaching in March.

Except for repair instructions on - replacing the entire electronics unit - exchange of transducers, either under pressure or depressurized - replacing the clock battery there is no troubleshooting information in the manual. So either you have boat anchor or you can get in touch with Krohne...

profibus, is each status/command (such as start, stop, running etc) its own input, or is the profibus signal itself one input? as it is only terminating into one card? A master asks for data, the slave provides the data. Then the master moves onto the next slave and asks for data. If the...

if a PT reaches a High alarm level of 5 bar or say 18mA, is this set point then converted into a digital input to the system/graphics/HMIs where ever it is displayed or logged? No. The transmitter sends its process variable (PV) to the DCS via analog (4-20mA) or digital (FF, Profibus, Modbus)...

Link URL corrected. Sorry for the bad link. Suggestion that you sum up your technical question in the subject line. Some Fora delete threads begging for help without any statement as to the type of problem or what field or category.

In post #3, the figure labeled 134 is the analog/discrete I/O connector, an 8 pin M12 connector. Fig 134 shows which pin is which. The figure labeled 004 is a 4 pin transformer coupled Ethernet connection on the 4 pin M12 connector. Just looking at the box tells you the 8 pin M12 is on the...

Honeywell has traditionally not made the documentation for their DCS systems public. The C200 is briefly described on this page but the support buttons provide no links to documentation...

Lots of OPC troubleshooting info here: https://www.opcti.com/opc-dcom-five-tips.aspx

I have no experience with this drive, but I'm guessing that the RS-232 port is for the TLHMI handheld configurator or a connection to the TLCT commissioning software on a Windows PC. Are you using the commissioning software? The English manual (2004) is at this link...

The buzz words in the industry IoT (Internet of things), IIot (Industrial Internet of things) and Industry 4.0/Factory 4.0 are, in my opinion, sales campaigns to sell services and hardware to put customer's production data on the web so customer people can see the data through a web browser...

The 8th digit in the model (type code) number defines which digital communications protocol the drive is installed in the M4 slot, if any. Which communications module does your drive have? What kind of hardware/software are you using to communicate with the drive? What have done thus far to...

Was the old flowmeter replaced with the same make and model flow meter?

I worked with Honeywell instrumentation for a couple decades. Honeywell's earlier generation field instruments could be configured to talk either DE protocol or conventional 4-20mA. Current generation uses either a DE comm module or a HART/4-20mA module. I don't know what the analog input...