ABB ACH580 Series User Manual page 148

ACH580 E-Clipse bypass and packaged drive user manual
Mapping summary
The following table summarizes the mapping between the system (parameters
and I/0) and Modbus reference space. For details, see
• Control Bits
• Relay Outputs
• Status Bits
• Discrete Inputs
• Analog Inputs
• Parameters
• Control/Status Words
• References
Communication profiles
When communicating by Modbus, the drive supports multiple profiles for control and
status information. Bypass parameter 5825 (EFB CTRL PROFILE) selects the profile
used. If bypass parameter 1625 = (1) SYSTEM then the drive and bypass profile are
fixed ABB BYPASS PROFILE. See section Bypass Overview for ABB BYPASS
PROFILE
• ABB DRV LIM – The primary (and default) profile is the ABB DRV LIM profile,
which standardizes the control interface with ACH580 and ACH550 drive
products. This profile is based on the PROFIBUS interface, and is discussed in
detail in the following sections.
• DCU PROFILE – Another profile is called the DCU PROFILE. It extends the
control and status interface to 32 bits.
• ABB DRV FULL – This profile standardizes the control interface with the ACH580
and ACH550 drive products. This profile is also based on the PROFIBUS
interface, and supports two control word bits not supported by the ABB DRV LIM
profile.
Modbus addressing
With Modbus, each function code implies access to a specific Modbus reference set.
Thus, the leading digit is not included in the address field of a Modbus message.
Note: The drive supports the zero-based addressing of the Modbus specification.
Holding register 400002 is addressed as 0001 in a Modbus message. Similarly,
coil 33 is addressed as 0032 in a Modbus message.
Refer again to the
detail, the mapping to each Modbus reference set.
0xxxx Mapping – Modbus Coils. The drive maps the following information to the
0xxxx Modbus set called Modbus Coils:
ACH580 Modbus Reference
Coils(0xxxx)
Discrete Inputs(1xxxx)
Input Registers(3xxxxx)
Holding Registers(4xxxx)
Mapping summary
Modbus addressing
Supported Function Codes
• 01 – Read Coil Status
• 05 – Force Single Coil
• 15 – Force Multiple Coils
• 02 – Read Input Status
• 04 – Read Input Registers
• 03 – Read 4X Registers
• 06 – Preset Single 4X Register
• 16 – Preset Multiple 4X Registers
• 23 – Read/Write 4X Registers
above. The following sections describe, in
139
below.
Embedded fieldbus