is a common part in any modern SCADA system machine
or production line because PLC has so many advantages such as:
Reduce the control components and wiring.
Easy to modify any function firmware.
More accurate in case of high speed signals.
less shutdown and function failure.
Easy in diagnostic and trouble shooting and many other advantages
used case of simple functions and small number of INPUTS and
OUTPUTS for small machines.
2. Module PLC
used in case of big machines and production lines and consists of
power supply module.
input digital or analogue modules.
output digital or analogue modules.
special functions module (sometimes system need timer,EPROM modules and so others special modules )
PLC needs software to operate with can found in RAM,PROM,EPROM, EEPROM or flash memory.
Troubleshooting of PLC in the machine is so easy if there is amachine wiring diagram
Technotronics can deal with PLC in two situations:
A machine or production line not working improper and factory need our support to locate the error place by troubleshooting and locate the defected board.
the customer locates the defected board and need to repair it
Technotronics percentage success in repairing PLC modules as follows:compact PLC power fault 90% compact PLC control fault 70% PLC power module 70% PLC CPU module 50% PLC INPUT digital 90% PLC INPUT analogue 70% PLC OUTPUT digital module 85% PLC OUTPUT analogue module 60% PLC special function software fault refused unless there is a new one by Technotronics engineers. Technotronics deal with all famous PLC brands such as:-
( Simens & Telemechanque & LG & Sony & Mitsubishi & Many
models in every brand)
we request technotronics for emergancy case of PLC board failure of one of our production line they come, take the board, and after only 3 hours they back with board repaired ,our production line run again thanks eng sherif abulazm,thanks technotronics