Control.com

read only access of hima project

Search Forums New Posts
A

Thread Starter

a.helmy

dear sir
i have joined the BMS program for heater in my company, which created by Hima H4/1q i contact as OLT and i could do forces, but i couldn't change the PT of the timers online as the project is read only

Any suggestions?
 
N

Nick Mellor

Hi.

The most probable answer is that the timer PT values are constants which can only be changed offline, recompiled, and downloaded. This is common for many critical timers in BMSes such as purge time, light off time, etc. It prevents accidental changes, etc. For total flexibility change them to variables, but beware the possibilities of erroneous changes described above.
 
R

Roy Matson

I second Nick, if you need to make them variable at least have code that checks to make sure the set-point is within a reasonable range.

Roy
 
You must log in or register to reply here.
Thread starter Similar threads Forum Replies Date
R How to read 32bit swap floating point value from energy meter in Vijeo Citect 7.5 Modbus 2
O Entronic controller FT110 - error "W-2011 I/O access read fault at E0001802 caused by 21" Programmable Logic Controller - PLC 0
R writing VB code for access to read comm port 1 General Software Chat 3
M Read/Write data from PLC to Excel or Access Human Machine Interface - HMI 0
R Read Serial Port with MS Access Computing 17
Similar threads
How to read 32bit swap floating point value from energy meter in Vijeo Citect 7.5
Entronic controller FT110 - error "W-2011 I/O access read fault at E0001802 caused by 21"
writing VB code for access to read comm port 1
Read/Write data from PLC to Excel or Access
Read Serial Port with MS Access

You May Also Like

Top