D
Hello,
I need to restrict access to a remote site by having a user enter an ID via a numeric keypad which will be compared in the PLC and if true, will latch an output. This will provide how many times the user has accessed, dae/time etc. Are there any simple devices to accomplish this task? We currently use SCADAPack PLCs (modbus).
Thanks,
D.
I need to restrict access to a remote site by having a user enter an ID via a numeric keypad which will be compared in the PLC and if true, will latch an output. This will provide how many times the user has accessed, dae/time etc. Are there any simple devices to accomplish this task? We currently use SCADAPack PLCs (modbus).
Thanks,
D.