AYK550-UH User’s Manual
153
Serial Communication – EFB
Mapping Summary
The following table summarizes the mapping between the AYK550 (parameters and
I/0) and Modbus reference space. For details, see "Modbus Addressing" below.
Communication Profiles
When communicating by Modbus, the AYK550 supports multiple profiles for control
and status information. Parameter 5305 (
EFB
CTRL
PROFILE
) selects the profile used.
• YORK
DRIVES
(Standard) – The primary (and default) profile is the YORK Drives
Profile, which standardizes the control interface among YORK drives. This profile
is based on the PROFIBUS interface, and is discussed in detail in the following
sections.
• AYK550 (Alternate) – An alternate profile is called the AYK550 Profile. It extends
the control and status interface to 32 bits, and is the internal interface between
the main drive application and the embedded fieldbus environment. This profile is
intended for advanced users only. This manual does not cover the AYK550 Profile
in detail. Contact your YORK supplier if you need more information on this 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.
Write Single
Holding Register
0x06
Write single holding register. For the AYK550, the entire
parameter set is mapped as holding registers, as well as
command, status and reference values.
Diagnostics
0x08
Perform Modbus diagnostics. Subcodes for Query (0x00),
Restart (0x01) & Listen Only (0x04) are supported.
Force Multiple Coils 0x0F
Write multiple discrete outputs. For the AYK550, the individual
bits of the control word are mapped to Coils 1…16. Relay outputs
are mapped sequentially beginning with Coil 33 (e.g. RO1=Coil
33).
Write Multiple
Holding Registers
0x10
Write multiple holding registers. For the AYK550, the entire
parameter set is mapped as holding registers, as well as
command, status and reference values.
Read/Write Multiple
Holding Registers
0x17
This function combines functions 0x03 and 0x10 into a single
command.
AYK550
Modbus Reference
Supported Function Codes
• Control Bits
• Relay Outputs
Coils(0xxxx)
• 01 – Read Coil Status
• 05 – Force Single Coil
• 15 – Force Multiple Coils
• Status Bits
• Discrete Inputs
Discrete Inputs(1xxxx)
• 02 – Read Input Status
• Analog Inputs
Input Registers(3xxxxx)
• 04 – Read Input Registers
• Parameters
• Control/Status Words
• References
Holding Registers(4xxxx)
• 03 – Read 4X Registers
• 06 – Preset Single 4X Register
• 16 – Preset Multiple 4X Registers
• 23 – Read/Write 4X Registers
Function
Code (Hex)
Description
Summary of Contents for AYK 550
Page 256: ...D1 AYK550 UH User s Manual Appendix D Appendix D Base Drive Drawing 205662 Drawings Fig 1...
Page 257: ...AYK550 UH User s Manual D2 Appendix D Base Drive w Fused Disconnect Drawing 205648 Fig 2...
Page 258: ...D3 AYK550 UH User s Manual Appendix D Base Drive w Non Fused Disconnect Drawing 205647 Fig 3...
