KROHNE UFC 400 Modbus EN - Manual (Page 14)

5
MODBUS PROTOCOL
14
UFC 400
www.krohne.com 05/2013 - 4002744801 - AD Modbus UFC 400 R01 en
5.8.1 Device Control
The "Device Control" offers some basic functionality to operate with the signal converter.
Therefore, the Modbus interface provides five coils that can be accessed via Modbus Function
Code "Write Single Coil" (0x05).
Write a coil to value 1 value 1 value 1 value 1 (ON) to initiate the action.
5.8.2 Device Status
Modbus Function Code "Write Single Coil" (0x05)
Coil
Address Name Description Display
Fct. No.
1000 1000 1000 1000
(0x03E8)
Restart Device Restart entire signal converter D4.1
1001 1001 1001 1001
(0x03E9)
Reset Errors Clears the system error flags A3.1
1002 1002 1002 1002
(0x03EA)
Apply Changes Apply latest changes of configuration -
1003 1003 1003 1003
(0x03EB)
Discard Changes Discard all of the configuration changes made since the last "Apply
Changes"
-
1004 1004 1004 1004
(0x03EC)
Reset to Factory
Data
Resets the signal converter to factory configuration C5.6.3
Modbus Function Codes "Read Discrete Inputs" (0x02)
Discrete
Inputs Name Description Type No. of
registers Values
10001 10001 10001 10001
(0x2711)
Unsaved changes
pending
Indicates if there are unsaved
changes. "Apply Changes" to
save them, "Discard Changes" to
work with previous settings
Bit 1 0 = no changes made
1 = unsaved changes
detected
Modbus Function Codes "Read Input Registers" (0x04)
Input
Register Name Type No. of
registers Values / Units Display
Fct. No.
39002 39002 39002 39002
(0x985A)
Device Operation Time Float 2 [s] B2.8
39004 39004 39004 39004
(0x985C)
NE 107 Status Groups Long 2 For further information refer to
NAMUR NE 107 Event Group(s)
on page 27.
-
39100 39100 39100 39100
(0x98BC)
NE 107 Device Status Byte 1 Bit 7 = Failure (F)
Bit 6 = reserved
Bit 5 = Out of Specification (S)
Bit 4 = Function Check (C)
Bit 3 = reserved
Bit 2 = Maintenance required (M)
Bit 1 = reserved
Bit 0 = Information (I)
-