E - VAE ProSys sro

+06 Bit Bit Bit Bit Bit Bit Bit Bit Bit Bit Bit Bit Bit Bit Bit Bit Meaning15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 only MT-91/-121x x x x x x x x x x x x x x x 1 Input IN1x x x x x x x x x x x x x x 1 x Input IN2x x x x x x x x x x x x x 1 x x Input IN3x x x x x x x x x x x x 1 x x x Input IN4x x x x x x x x x x x 1 x x x x Input IN5x x x x x x x x x x 1 x x x x x Input IN6x x x x x x x x x 1 x x x x x x Input IN7x x x x x x x x 1 x x x x x x x Input IN8• Press one of the keys specified above → set key bit• Release → reset bit• It is not possible to operate several function keys simultaneously since all bits go to 0.• When operating these keys connection can be made with the relays (in System Configuration) and used asprotection query. Please observe the possible delay by communication• Key transmission is prioritised.• Each time a key is pressed, a trigger bit is set.• Additionally, a message bit is set when the history overflows.• Further, a PASS bit is transmitted cyclically which is used to control the communication monitoring. This bit canbe reset by the PLC. If the condition after a specific time (e.g. Timeout = 15 sec) remains at 0 then the PLC canrecognise that there is a communication error.Example:The "PLC address function key field" is in the example at MD 00,01; thus the function keys F1 to F16 are filed in"PLC address function key field "+1 = MD 00,03. If the operator now presses key F1, the device sets Bit 0 or Bit 15for F16. At the same time, the function stored under F1 is activated e.g. text call-up.Process display and control/ Device Manual/ Issue: 07.01105E