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Write Serial Output Data to
the ASCII Module
Configure ASCII Modules
Table 2 - Default Receive Data Assembly Format (Default Mode)
Byte 1
Receive Record Number
1. Add the ASCII module to a Studio 5000 Logix Designer application
project, see
Create a New Module on page
2. Connect the serial side of the ASCII module to your computer's serial
port or another serial device.
3. From the Module Information dialog box, check the module information.
4. Make sure that the ASCII module is in the default factory configuration.
5. Set the communication rate and framing format of the serial port to the
communication rate and framing format of the serial device that you are
using.
6. Enter the serial data that you wish to send in the transmit data controller
tag.
7. Enter the length of the data in the length byte to reflect the length you
wish to send and press Enter.
8. Set the transmit record number from the controller tag, and apply.
The ASCII module transmits the characters that you entered in the
controller tag to the connected serial device.
Table 3 - Default Transmit Data Assembly Format (Default Mode)
Byte 1
Byte 2
Reserved
Transmit Record Number
You must create a Studio 5000 Logix Designer application project for the
Logix 5000 controller that owns the ASCII module. The project includes
module configuration data for the ASCII module.
The Studio 5000 Logix Designer application transfers the project to the owner-
controller during the program download. Data is then transferred to the ASCII
module over the EtherNet/IP network.
ASCII modules can operate immediately after receiving the configuration data.
Connections
During module configuration, you must define the module. Among the
Module Definition parameters, you must choose a connection type for the
module. A connection is a real-time data transfer link between the owner-
controller and the module that occupies the slot that the configuration
references.
When you download module configuration to a controller, the controller
attempts to establish a connection to each module in the configuration.
Because part of module configuration includes a slot in the POINT I/O system,
the owner-controller checks for the presence of a module there. If a module is
Rockwell Automation Publication 1734-UM009C-EN-P - August 2022
Chapter 1
Byte 2
Byte 3
Byte 4
Status Byte
Reserved
Length
Byte 3
Byte 4
Reserved
Length
Overview of the POINT I/O ASCII Modules
Byte 5...23
Byte 24
ASCII Data
<CR> (Terminator)
15.
Byte 5...23
Byte 24
ASCII Data
<CR> (Terminator)
9
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