
6 Error messages
BU 0700 EN
Subject to technical alterations
111
Display
Error
Cause
¾
Remedy
Group
Detail in
P700 / P701
E020
20.0
External RAM error
System error in program execution, triggered by EMC interference.
¾
Please comply with wiring guidelines in Section 2.9.
¾
Use additional external mains filter. (Chap. 8.3 / 8.4 EMC)
¾
FI must be very well "earthed".
20.1
Watchdog
20.2
Stack overflow
20.3
Stack underflow
20.4
Undefined opcode
20.5
Protected instruction
20.6
Illegal word access
20.7
Illegal instruction access
20.8
EPROM error
20.9
Error Dual-Port-Memory
21.0
NMI (not used by hardware)
21.1
PLL
e
rror
21.2
AD overrun
21.3
PMI access error