Yes – If you are using expansion units (EXM-E-) with your GSM CPU then you cannot use EXM-E-RS485 as well. If you require RS485 on your GSM CPU system, then… read more →
Yes, you can achieve this through the programming software by selecting “Tools -> Edit Cover HMI”. Only the first two lines of the LCD can be changed but you can… read more →
Yes. Most of the CPU’s IO can be increased by the addition of expansion units. The exception to this are the PR-6 and PR-12 Standard CPU’s.