9.383 Moxa-ioThinx-4510

This page describes the device driver and the device window for the Moxa ioThinx 4510 data acquisition unit. The device driver monitors and controls the digital inputs/outputs of various modules hosted by the ioLThinx 4510 unit. The driver supports digital I/O modules.

The Moxa-ioThinx-4510 device driver is part of the sat-nms framework for M&C of plain digital I/O functions. Monitoring alarm circuits or controlling waveguide switches are indicatives for applications of this framework.

The application configuration normally does not access the Moxa-ioThinx-4510 device driver directly. There are a couple of application level logical devices (e.g. Input , Output or WG-Switch ) which may use the Moxa-ioThinx-4510 device driver as a low level driver to access the physical I/O ports.

Port adressing

As from units documentation there is no auto/fixed address mapping mode available the ioThinx device register addresses has to be manually added via device setup. See configuration parameters section below. By default all modules are disabled on the device setup page (module = NONE).

The driver was tested with MR1600 (16 DIs) and MR2404 (4 relay) modules. It is assumed that module base information can be found in the following registers

• SW Version: 47772
• Unit Serial: 47780
• Unit Name: 47744

The sat-nms device driver for the Moxa ioThinx 4510 provides one input variable (named I0000 to I000F) and one output variable (named Q0000 to Q000F) for each module position. If for example an input module is at the third position from the main unit, its readings are in the variable I0002. The enumeration scheme (hexadecimal notation and starting with 0000 for the first one) is for compatibility with other PLC devices.

Output modules are treated in the same way but with the variables Q0000 Q000F. If for example the module next to the main module is an output or relay module, it gets controlled through the variable Q0000.

Configuration settings

If used with the sat-nms framework for M&C of plain digital I/O functions, the Moxa ioLThinx device acts like an unprogrammed PLC device. It is intended, that the device driver processes switch settings and changes of input circuits as fast as possible. The following settings are necessary to achieve this:

• When defining the ioThinx device in the device setup window, there must not be defined any other devices beside this module for this interface.
• The ioThinx unit is controlled through Modbus/TCP. The device's IP address must be set as an interface name like with serial devices controlled through a network terminal adapter: "aaa.bbb.ccc.ddd:502" where 502 is the standard Modbus/TCP port number.
• The IDLE time for the interface must be set to 200 msec for a fast response of the driver.

Device window pages

The following table shows which device window pages are available with this individual device type. Tool-bar functions not mentioned here are described at the general description of device windows .

• --- Shows / commands I/O port states.
• --- The faults page.
• --- The device info page.
• --- The maintenance page. The configuration parameters described below are set at this page.

Configuration parameters

At the maintenance page of the device window there are a couple of configuration parameters which must be set to make the software talk to the device.

Variables defined by this device driver