AIMCO LIT-MAN177 Gen IV Controller Instruction Manual

LIT-MAN177 Gen IV Controller

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Specifications:

• Protocol: Modbus TCP Server
• Functionality: Supports Modbus RTU protocol
• Device Classes: Class 1 device supporting all Class 0 and 1
  functions

Product Usage Instructions:

Modbus TCP Inputs:

Modbus TCP Inputs are used for data communication between the
controller and PLCs. Follow the steps below to configure Modbus TCP
Inputs:

1. Press to enter the Input Configuration Screen.
2. Choose the Element Type from Byte, Int16, Int32, or ASCII.
3. Set up the Element by specifying the Bit (if applicable), the
   number of Bits to read, starting bit location, and Polarity.
4. If using ASCII, specify the Length of characters desired to
   send.
5. If using Click Wrench function, specify Torque value and Torque
   Units.
6. Select desired Input Function(s) as per the Gen IV Controller
   User Manual.
7. Click on after making appropriate selections.

Modbus TCP Outputs:

Modbus TCP Outputs are used to set up outputs on the controller.
Follow the steps below to configure Modbus TCP Outputs:

1. Press to enter the Output Configuration Screen.
2. Set up the Outputs by specifying the Element Type, Element, Bit
   (if applicable), number of Bits, and starting bit location.
3. If needed, specify Polarity, Length (for ASCII ID function),
   Torque value, and Torque Units.
4. Select desired Output Function(s) as per the Gen IV Controller
   User Manual.
5. Click on after making appropriate selections.

Frequently Asked Questions (FAQ):

Q: What is the purpose of Modbus TCP Inputs and Outputs?

A: Modbus TCP Inputs and Outputs facilitate data communication
between the controller and PLCs by allowing the transfer of short
data packages efficiently.

Q: How are Modbus TCP Inputs configured?

A: Modbus TCP Inputs can be configured by accessing the Input
Configuration Screen, choosing Element Type, setting up Element
details, specifying Bit (if needed), defining starting bit
location, and selecting the appropriate Input Functions.

Q: How can I set up Modbus TCP Outputs?

A: Modbus TCP Outputs can be set up by accessing the Output
Configuration Screen, specifying Element Type, setting up Element
details including Bits and starting bit location, and selecting the
desired Output Functions as per the Gen IV Controller User
Manual.

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Gen IV Controller Modbus TCP Instructions

The AcraDyne controller supports the Modbus/ TCP Server protocol on the local Ethernet port. The controller can accept messages from a Modbus/TCP Client and return responses to the Client.
From the main menu, select Controller.

Following are the Modbus TCP options

Select IO.

Supported Features: The Modbus/TCP server supports the Modbus RTU protocol. Modbus RTU is a communication protocol that represents devices as “Registers” and “Coils.” Modbus TCP defines multiple classes of devices based on functionality. The controller is a Class 1 device supporting all Class 0 and 1 functions.
· Class 0 devices must support function codes 3 and 16.
· Class 1 devices must support function codes 1­7 and 16.
The supported functions are:
· Function Code 1 – Read Coil Status · Function Code 2 – Read Input Status · Function Code 3 – Read Holding Registers · Function Code 4 – Read Input Registers · Function Code 5 – Force Single Coil · Function Code 6 – Write Single Holding Register · Function Code 7 – Read Exception Status · Function Code 16 – Write Multiple Holding Registers

AcraDyne Gen IV Controller: Modbus TCP Instructions

Controller Outputs Addressing The controller’s assignable outputs are mapped as Modbus TCP input registers. The first two assignable output bytes are register 0 followed by register 1 (bytes 2 & 3). Since Modbus TCP uses 16 bit registers it is helpful to create assignments with a size of INT16. The controller’s outputs can read with function code 4 “Read Input registers.”

Controller Inputs Addressing The controller’s assignable inputs are mapped as Modbus TCP holding registers. The first two assignable input bytes are register 1000 followed by register 1001 (bytes 2 & 3). Since Modbus TCP uses 16 bit registers it is helpful to create assignments with a size of INT16. The controller’s inputs can be written with function code 6 “Write Single Holding register” and function Code 16 “Write Multiple Holding registers.” The controller’s inputs can also be read with function Code 3 “Read Holding registers.”

The controller’s outputs can also be addressed as coils. The assigned outputs start at coil #16.
The controllers outputs can be read with function code 2 “Read Input Status.”

The controller’s inputs can also be addressed as coils. The assigned inputs start at coil #1015.
The controller’s inputs can be written with function code 5 “Force Single Coil.” The controller’s inputs can also be read with function code 1 “Read Coil Status.”

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AcraDyne Gen IV Controller: Modbus TCP Instructions

Modbus TCP Inputs These types of communication are useful for data communication between controller and PLCs. It is an effective, quick way for the data transfer of short data packages.

Press to enter Input Configuration Screen
Example of the Modbus TCP Input screen with five Inputs set up. Click on to change an individual Element or return to Input Configuration screen. Will delete individual Elements.

Element Type: Choose from Byte, Int16, Int32, or ASCII.
Element: Shows element # being configured
Bit (not shown): Enter Bit #.
Bits: # of bits the assignment will read.
Start at: Starting bit location.
Polarity (not shown): Select Normally Open (N.O.) or Normally Closed Outputs (N.C.).
Length (not shown, available in ASCII ID function): Number of characters desired to send.
Torque (not shown, available in Click Wrench function): Torque value to be reported when using Click Wrench input. Value input is what will be sent from controller when Input Signal is received from a Click Wrench. Value is NOT calculated by the controller rather it is solely what the Click Wrench is calibrated to by outside means.
Torque Units (not shown, available with Click Wrench function): Choose from Nm, Kgm, Kgcm, Ftlb, and Inlb.
Function: See the Gen IV Controller User Manual for more details. Select desired Input Function(s).
Click on after appropriate selections are made.

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AcraDyne Gen IV Controller: Modbus TCP Instructions

Modbus TCP Outputs
Press to enter Output Configuration Screen
Example of the Modbus TCP Output screen with five Outputs set up. Click on to change an individual Element or return to Input Configuration screen. Will delete individual Elements.

Element Type: Choose from Byte, Int16, Int32, or ASCII.
Element: Shows element # being configured
Bit: Enter Bit #.
Bits (not shown): # of bits the assignment will read.
Start at: Starting bit location.
Polarity: Select Normally Open or Normally Closed Outputs.
Mode: · Normal: Output signal
sent. · Timed Signal Sent: Time
entered in seconds · Flash Signal Sent: Time
entered in seconds
Function: See the Gen IV Controller User Manual for more details on assignable functions.
Click on after appropriate selections are made.

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LIT-MAN177_MODBUS 04-09-25
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Documents / Resources

AIMCO LIT-MAN177 Gen IV Controller [pdf] Instruction Manual LIT-MAN177 Gen IV Controller, LIT-MAN177, Gen IV Controller, Controller

References

• User Manual