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48
K-Format Communication
Section 3-4
3-4
K-Format Communication
3-4-1
Fixed Communication Blocks
The K-Format protocol supports Fixed Communication blocks to allow easy
configuration for a number of I/O parameters, supported by the E5AK / E5EK
intelligent Digital Controllers. In the next table an overview of the Fixed Com-
munication blocks is listed.
Note The Special operation word is explained in the section below.
3-4-2
Operation Execute
The Operation Execute word can be used to Start or Stop a control cycle in
the E5AK / E5EK Controller. The command options are shown below.
Note Other values for Operation Execute are not supported.
3-4-3
K-Format Parameter Settings
For the Fixed Communication blocks the user can define behaviour of the
PRT1-SCU11 on the K-Format communication in case the PROFIBUS com-
munication fails.
PROFIBUS
Communication Fails
In case the PROFIBUS communication fails, there are two options for the
PRT1-SCU11 to handle this, as defined by the a user.
• The PRT1-SCU11 can send a stop command to the device, causing the
control cycle to stop.
• The E5AK / E5EK can Hold the last received Setpoint Value.
K-Format
Device
type
Module name
Output words
Input words
Total
output
words
Total
input
words
Number of
channels
-
Empty slot (No device)
-
-
0
0
N/A
E5AK/
E5EK
E5_K-Basic 5WI/2WO
SV channel 1
Operation Execute
(See Note)
PV channel 1
SV channel 1
Status A group
Status B group
Special Operation
2
5
1
E5_K-Extended 5WI/4WO
SV channel 1
Alarm value 1
Alarm Value 2
Operation Execute
(See Note)
PV channel 1
SV channel 1
Status A group
Status B group
Special Operation
4
5
1
Command
Value
(See Note)
Description
Run
0000
Start Control cycle.
Stop
0001
Stop Control Cycle.
Содержание PROFIBUS DP GATEWAY
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