Plc Configuration Key; Plc Configuration Key For The Valve Zone; Plc Configuration Key For The I/O Zone - Emerson AVENTICS Modbus TCP Manual De Instrucciones

12.4 PLC Configuration Key

12.4.1 PLC configuration key for the valve zone

The PLC configuration key for the valve zone (59) is printed on the right end
plate.
The PLC configuration key specifies the sequence and type of electrical compo-
nents based on a numerical/alphabetical code. The PLC configuration key con-
sists solely of numbers, letters, and dashes. There are no spaces between the val-
ues.
In general:
• Numbers and letters refer to the electrical components.
• Each digit corresponds to one valve driver board. The number's value refers to
the number of valve positions for a valve driver board.
• Letters refer to special modules that are relevant to the PLC configuration.
• "–" visualizes a pneumatic supply plate without UA-OFF monitoring board;
not relevant to the PLC configuration
The sequence begins on the right side of the bus coupler and ends at the right
end of the valve system.
The following table shows the elements that can be represented in a PLC configu-
ration key. See g Table 19.
Table 19: Elements of the PLC configuration key for the valve zone
Abbrevia- Meaning
tion
2 Valve driver board, 2x
3 Valve driver board, 3x
4 Valve driver board, 4x
– Pneumatic supply plate
K Pressure regulator, 8 bit, con-
figurable
L Pressure regulator, 8 bit
M Pressure regulator, 16 bit,
configurable
N Pressure regulator, 16 bit
U Electrical supply plate
W Pneumatic supply plate with
UA-OFF monitoring
Example of a PLC configuration key: 423–4M4U43.
The transition plate and the pneumatic supply plate at the start of the
valve system, as well as the right end plate, are not included in the PLC
configuration key.

12.4.2 PLC configuration key for the I/O zone

60
The PLC configuration key for the I/O zone (60) is module-related. It is printed on
the top of the device.
The sequence of I/O modules starts on the left side of the bus coupler and ends
on the left end of the I/O zone.
AVENTICS™ Modbus TCP | R412028202-BAL-001-AC | English
59
Length of output Length of input bytes
bytes
1 byte 0 bytes
1 byte 0 bytes
1 byte 0 bytes
0 bytes 0 bytes
1 byte 1 byte
1 byte 1 byte
2 bytes 2 bytes
2 bytes 2 bytes
0 bytes 0 bytes
0 bytes 0 bytes
The PLC configuration key encodes the following data:
• Number of channels
• Function
• Connector
Table 20: Abbreviations for the PLC configuration key in the I/O zone
Abbreviation
8
16
24
DI
DO
AI
AO
M8
M12
DSUB25
SC
A
L
E
P
D4
Example:
The I/O zone consists of three different modules with the following PLC configu-
ration keys:
Table 21: Example of a PLC configuration key for the I/O zone
PLC configuration key for Characteristics of the I/O
the I/O module module
8DI8M8 • 8x digital input channels
• 8x M8 connections
24DODSUB25 • 24x digital output chan-
nels
• 1x D-SUB plug, 25-pin
2AO2AI2M12A • 2x analog output chan-
nels
• 2x analog input channels
• 2x M12 connections
• Additional actuator volt-
age connection
The left end plate is not reflected in the PLC configuration key.
The length of the input or output bytes can be found in the system description
u
of the individual I/O module.
If you do not have the system description of the module at hand, you can calcu-
late the input and output data lengths by observing the following guidelines:
For digital modules:
Divide the number of bits by 8, to find the length in bytes.
u
– For input modules, the value is the input data length. There is no output
data.
– For output modules, the value is the output data length. There is no input
data.
– For I/O modules, the total output and input bytes are the lengths of the
output and input data, respectively.
Example:
• The digital module 24DODSUB25 has 24 outputs.
• 24/8 = 3 bytes output data
For analog modules:
1. Divide the resolution of an input or output by 8.
2. Round the result up to a whole number.
3. Multiply this value by the number of inputs or outputs. This number is the
length in bytes.
Example:
Meaning
Number of channels or number of plugs; the
number always precedes the element
Digital input channel
Digital output channel
Analog input channel
Analog output channel
M8 connection
M12 connection
DSUB connection, 25-pin
Spring clamp connection
Additional actuator voltage connection
Additional logic voltage connection
Enhanced functions
Pressure measurement
Push-in D = 4 mm, 5/32 Inch
Data length
• 1 byte input
• 0 bytes output
• 0 bytes input
• 3 bytes output
• 4 bytes input
• 4 bytes output
(Bits are calculated from
the resolution of the ana-
log channels, rounded up
to whole bytes, times the
number of channels)
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