Fault Clearance; Resetting The Active Error Bit; System Faults - Festo VAEM-V-S8EPRS2 Operating Instructions Manual

Malfunctions
LED green LED red
Tab. 32 Status indicator
Diagnostics via status word
The status word facilitates the diagnosis of faults and their origin. Structure of the status word
è Tab. 20 Meanings of the bits in the status word.
Bit
Bit 0
Bit 3
Bit 4
Meaning
Tab. 33 Frequent bit combinations in the status word
9.2

Fault clearance

9.2.1

Resetting the active error bit

If an error occurs, the error bit, bit 3 in the status word, is activated. This must be reset manually. To
reset this, a state change of 0 à 1 must take place in the control word at bit 3. To ensure continued
operation, the control word must be reset to its original state.
1. Reset control word.
– Via ASCII telegram: WU16: I1S0V0
– Using Modbus TCP: 0000 0000 0019 00 17 0000 0007 0000 0007 0E 01 02
0001 00 00 0000 0000 0000 0000
2. Set bit 3 in the control word.
– Via ASCII telegram: WU16: I1S0V8
– Using Modbus TCP: 0000 0000 0019 00 17 0000 0007 0000 0007 0E 01 02
0001 00 00 0000 0000 0000 0008
9.2.2

System faults

In the event of a system fault, all selected valves are deactivated in the status word. The red LED
flashes and error bit 3 in the status word becomes active.
26
Description
Operating system error
Bootloader mode
This mode shows that a firmware update has failed.
Firmware update is being run
Bit combination 1
1
1
0
Error in the operating phase and
1 connected valve error-free
³
Bit combination 2
0
1
0
No operating phase and faults
on one or more valves
Festo — VAEM-V-S8EPRS2 — 2020-07