Fieldbus control through the embedded fieldbus interface (EFB) 437
Exception codes
The table below shows the Modbus exception codes supported by the embedded
fieldbus interface.
0Bh
Get Comm Event
Counter
Returns a status word and an event count.
0Fh
Write Multiple Coils
Forces a sequence of coils (0X references) to 0 or 1.
10h
Write Multiple Registers
Writes the contents of a contiguous block of holding
registers (4X references).
16h
Mask Write Register
Modifies the contents of a 4X register using a
combination of an AND mask, an OR mask, and the
register’s current contents.
17h
Read/Write Multiple
Registers
Writes the contents of a contiguous block of 4X
registers, then reads the contents of another group of
registers (the same or different than those written) in
a server device.
2Bh / 0Eh
Encapsulated Interface
Transport
Supported subcodes:
• 0Eh Read Device Identification: Allows reading the
identification and other information.
Supported ID codes (access type):
• 00h: Request to get the basic device identification
(stream access)
• 04h: Request to get one specific identification
object (individual access)
Supported Object IDs:
• 00h: Vendor Name (“ABB”)
• 01h: Product Code (for example, “ASCCL”)
• 02h: Major Minor Revision (combination of contents
of parameters
07.05
Firmware version
and
58.02
Protocol ID
).
• 03h: Vendor URL ("www.abb.com")
• 04h: Product name: (“ACS380”).
Code
Name
Description
01h
ILLEGAL FUNCTION
The function code received in the query is not an
allowable action for the server.
02h
ILLEGAL ADDRESS
The data address received in the query is not an
allowable address for the server.
03h
ILLEGAL VALUE
The requested quantity of registers is larger than the
device can handle. This error does not mean that a
value written to the device is outside of the valid
range.
04h
DEVICE FAILURE
An unrecoverable error occurred while the server was
attempting to perform the requested action. See
section
Error code registers (holding registers
400090…400100)
on page
440
.
Code
Function name
Description
ACS380 FW.book Page 437 Friday, May 4, 2018 4:18 PM
ghv Vertriebs-GmbH
| Am Schammacher Feld 47 | 85567 Grafing | T 49 80 92 81 89 0 | [email protected] |
www.ghv.de
