E - VAE ProSys sro

6.10 Fault bit processing in the PLC-ModeFault bit processing enables very comfortable representation and recording of faults and operation messages.Fault bit processing has the following features:• Management of maximum 32 simultaneous faults from a total of 240 (MT-30, MT-40, MT-60) resp. 512(MT-45, MT-91, MT-121) in a fault message buffer.• Fixed allocation of a bit to a fault resp. to a text number.• The fault words are located from "Address of control words" resp. "LED-Bit field" + 5 and have followingallocation:Address of control words/ LED-Bit fieldBit 15 Bit 14 ... Bit 1 Bit 0+5/ +0 Fault 15 Fault 14 ... Fault 1 Fault 0+6/ +1 Fault 31 Fault 30 ... Fault 17 Fault 16... ... ... ... ... ...+19/ +14 Fault 239 Fault 238 ... Fault 225 Fault 224... ... ... ... ... ...+36/ +31 Fault 511 Fault 510 ... Fault 497 Fault 496The fault basic text number can be parameterized in the PLCPlus program. The fault text number is obtained byadding the basis text number and fault number.Example:The configured "Address of control words" resp. "LED-Bit field" is MD 01,04, the basis fault text number 500.If the bits 0, 1, and 5 are set in MD 01,09 then the fault text numbers 500, 501 and 505 are active and thecorresponding texts are located in the fault message buffer.• Indication of existing faults with LED 4. Flashes as long as a dynamic fault is present which has not beenacknowledged• Distinction of static, dynamic and interrupting faults.• Automatic call of the fault menu and display of the fault head as long as the device shows the basic menu i.e.no active operation / message text or history.• If in the configuration menu "Operation of the relays" was selected via "Alarm" the relay is active as long as adynamic fault has not yet been acknowledged.E120Process display and control/ Device Manual/ Issue: 07.01