Weishaupt EM3/2 - Profibus Input Data for Bus Participants

Installation and operating instruction
Fieldbus module EM3/2
7 Technical documentation
83296302 1/2018-01 La
14-32
7.1.2 Profibus input data for Bus participants
Four configurations (variables) of the input data can be selected from the GSD file.
Input data is information about the condition of the combustion manager.
Depending on the configuration, the input data is expanded by the corresponding
bytes. That means the Basic-Transfer is included in Standard-Transfer, Standard-
Transfer is included in Extended-Transfer, etc.
Configuration Byte Number of Bytes
Basic-Transfer EB0 … EB2 3 Bytes
Standard-Transfer EB0 … EB5 6 Bytes
Extended-Transfer EB0 … EB33 34 Bytes
Special-Extended-Transfer EB0 … EB57 58 Bytes
Bytes EB0, EB1, EB5 contain Bit information.
Under description, the condition is entered if the Bit is set to 1.
The fault value (S) indicates the bit value during a fault. Some bits are set to "0" in
the event of a fault. Bits marked "X" indicate the current state.
Byte Bit Information Description S
Basic-Transfer
EB0 0 Flame (ionisation) Signal flame (ionisation) present 0
1 Flame (flame sensor) Signal flame (flame sensor) present 0
2 Flame detection Flame signal detected 0
3 Air pressure switch X3:11 Air pressure available X
4 Input X3:12 Low gas / valve proving gas pressure switch, oil pressur
switch
X
5 Input X3:14 Remote reset, low gas pressure switch X
6 Input X3:15 High gas pressure switch, LDW2 (ducted air intake) X
7 Fuel change-over X3:8 0: Gas
1: Oil
EB1 0 Valve X3:5 Double gas valve, stage 1 solenoid valve X
1 Valve X3:6 Stage2 solenoid valve X
2 Valve X3:1 External LPG valve, safety solenoid valve, stage 1
solenoid valve
X
3 Ignition device X3:4 Ignition available X
4 Relay X3:3N Burner motor, frequency converter, valve continuous
running fan
X
5 Output operation B4 Various programs X
6 Control circuit (T1/T2) Temperature or pressure regulator X
7 Lockout Combustion manager is blocked X
EB2 0…7 Operating phase or error codes Current operating phase or, if in lockout, error codes X
from Standard-Transfer
EB3 0…7 Flame quality or first detailed er-
ror code
Flame quality or if in lockout first detailed error code X
EB4 0…7 Operating mode or second de-
tailed error code
Operating mode
3: Pneumatic gas operation
4: Oil operation
7: Electronic gas operation
or if in lockout second detailed error code
X
EB5 0 Internal fuel change-over Input fuel change-over was activated 0
1…7 not used – 0