Transfer Parameters And Start The Valve System; Structure Of The Valve Driver Data; Process Data; Diagnostic Data - Emerson AVENTICS Modbus TCP Manual De Instrucciones

5.7 Transfer parameters and start the valve system

Data may be transferred to the valve system once the system is completely and
correctly configured.
1. Check whether the lengths for the input and output data that you have en-
tered in the controller match those of the valve system.
2. Establish a connection to the controller.
3. Transfer the parameter data of the valve system to the controller. The precise
process depends on the PLC configuration program. Observe the respective
documentation.
4. Set the "Param_Set" bit.
5. Set the "Run_Set" bit. This transmits the output payload data to the outputs.
Input payload data can be read out at any time if a connection exists.

6 Structure of the Valve Driver Data

6.1 Process Data

Incorrect data assignment!
Danger caused by uncontrolled movement of the system.
Always set the unused bits to the value "0".
u
The valve driver board receives output data from the controller with nominal val-
ues for the position of the valve solenoid coils. The valve driver translates this
data into the voltage required to actuate the valves. The length of the output
data is eight bits. Of these, 4 bits are used with a 2x valve driver board, 6 bits with
a 3x valve driver board, and 8 bits with a 4x valve driver board.
The following figure shows how valve positions are assigned on 2x, 3x, and 4x
valve driver boards.
See g Fig. 12.
22
20
    
Fig. 12: Valve position assignment
(1) Valve position 1
(3) Valve position 3
20 Base plate, 2x
22 Valve driver board, 2x
24 Valve driver board, 4x
The symbols for the valve zone components are explained in sec-
tion g 12.2 Valve Zone.
The assignment of valve solenoid coils to bits is as follows:
1)
Table 11: Valve driver board, 2x
Output Bit 7 Bit 6
byte
Valve desig- – –
nation
Solenoid – –
designation
1)
Table 12: Valve driver board, 3x
Bit 7 Bit 6
Output
byte
Valve desig- – – Valve 3
nation
Solenoid – – Sol. 12
designation
AVENTICS™ Modbus TCP | R412028202-BAL-001-AC | English
WARNING
23 24
21
   
(2) Valve position 2
(4) Valve position 4
21 Base plate, 3x
23 Valve driver board, 3x
Bit 5 Bit 4 Bit 3 Bit 2
– – Valve 2 Valve 2
– – Sol. 12 Sol. 14
Bit 5 Bit 4 Bit 3 Bit 2
Valve 3 Valve 2 Valve 2
Sol. 14 Sol. 12 Sol. 14
1)
Bits that are marked with a "–" may not be used and are assigned the value "0".
Table 13: Valve driver board, 4x
Output
byte
Valve desig-
nation
Solenoid
designation
g Table 11,
With a single solenoid valve, only solenoid 14 is used (bits 0, 2, 4, and
6).

6.2 Diagnostic Data

6.2.1 Cyclical diagnostic data of the valve drivers

The valve driver sends the diagnostic message with the input data to the bus cou-
pler. The diagnostic bit for the corresponding module (module number) indicates
where the fault occurred. The diagnostic message consists of a diagnostic bit,
which is set in the event of a short circuit of an output (group diagnostics).
The diagnostic bit can be read as follows:
• Bit = 1: An error has occurred.
• Bit = 0: No error has occurred.

6.3 Parameter Data

The valve driver board does not contain any parameters.

7 Structure of the Electrical Supply Plate Data

The electrical supply plate interrupts the UA voltage coming from the left and
transfers the voltage supplied by the additional M12 plug to the right. All other
signals are directly passed on.
7.1 Process Data
The electrical supply plate does not have any process data.
20
7.2 Diagnostic Data

7.2.1 Cyclical diagnostic data of the electrical supply plate

The electrical supply plate sends the diagnostic message as a group diagnosis
with the input data to the bus coupler. The diagnostic bit for the corresponding
module (module number) indicates where the fault occurred. The diagnostic
message consists of a diagnostic bit that is set when the actuator voltage falls be-
low 21.6 V (24 V DC -10% = UA-ON).
The diagnostic bit can be read as follows:
• Bit = 1: An error has occurred (UA < UA-ON).
• Bit = 0: No error has occurred (UA > UA-ON).
7.3 Parameter Data
The electrical supply plate does not have any parameters.
8 Structure of Pneumatic Supply Plate Data with
UA‑OFF Monitoring Board
Bit 1 Bit 0
The electrical UA-OFF monitoring board transfers all signals including the supply
Valve 1 Valve 1
voltages. The UA-OFF monitoring board recognizes whether the UA voltage falls
below the UA-OFF value.
Sol. 12 Sol. 14
8.1 Process Data
The electrical UA-OFF monitoring board does not have process data.
Bit 1 Bit 0
Valve 1 Valve 1
Sol. 12 Sol. 14
Bit 7 Bit 6 Bit 5 Bit 4
Valve 4 Valve 4 Valve 3 Valve 3
Sol. 12 Sol. 14 Sol. 12 Sol. 14
g Table 12 and g Table 13
Bit 3 Bit 2 Bit 1 Bit 0
Valve 2 Valve 2 Valve 1 Valve 1
Sol. 12 Sol. 14 Sol. 12 Sol. 14
show double solenoid valves.
35