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Communication with AMiT PLC devices (Czech republic)

The following text describes the possible communication options of the PROMOTIC system with the PLCs and IO modules of the AMiT company (http://www.amit.cz).
 

Communication via the AtouchX activeX object

This document amends the trade-technical information to the AMiT AtouchX communication drivers. The complex information to the AtouchX driver is provided by the AMiT company.
 
The communication with the AMiT HW (Amiris, Adis, etc.) can be carried out by methods:
- serial link RS232 or RS485
- Phone modem (up to 255 subscribers, Amit HW can also dial telephone numbers)
- LAN network (Ethernet) - checked that it is 5-times quicker than over the RS485 with the 38400 Bd speed rate.
 
All 4 types of the connection are supported by only one AtouchX communication driver that was developed by the AMiT company. The AtouchX is supplied as the ActiveX object.

The PROMOTIC system accesses the AtouchX driver by the PmActiveX object. This object accesses calling the AtouchX methods and captures its events.

 
Basic information and examples of AtouchX driver usage in the PROMOTIC system:
- Example of communication with Amit PLC devices.

Suitable for beginners and quick introduction to basics. This is an example containing both the PLC side and PROMOTIC side content.

- Preconfiguration "AMiT AtouchX Communication set using the ActiveX with the AMiT device".

Suitable for easy integration of communication into PROMOTIC application.

- The examples for PROMOTIC system are also available at AMiT Web pages. There are useful tips for e.g. matrix manipulations, time programs, operation logs, etc. See http://www.amit.cz/cz/support/appnotes.htm.
 
Trade terms:

The AtouchX is available on the http://www.amit.cz, where free download is possible.

Usage of the PmActiveX object is bound to the purchase of the PmActiveX license in the application. With the freeware version PmFree, or when developing the application (with development environment for tersting purposes), this component is always functional.

Communication with the IO modues by the AMiT company

For example the following modules: DMM-DI24, DMM-DO18, DMM-AI12, DMM-AO8, DMM-RDO12, DMM-PDO6NI6, DMM-UI8(R)DO8, DMM-UI8(R)AO8U, DMM-FCx.

The remote I/O modules by the AMiT company can be accessed from the PROMOTIC system by two ways:

 
- With the modules of the DMM-xx line it is possible to communicate via the Modbus RTU protocol. For this communication in the PROMOTIC system can be used: PmModbusMr - Driver for communication by the Modbus Master protocol.
- For easy integration of this driver into the application it is handy to use:
- Preconfiguration "PmModbusMr - AMiT modules DMM (Modbus RTU) - Communication set with data and panel"
- For this driver, it is recommended to set the configurators:
- PmCommData > Parameters > Special Parameters > Area base addresses:
- base address "Bo = Coil/output bits" = 0
- base address "Bi = Input bits" = 0
- base address "Ro = Holding/output registers" = 0
- base address "Ri = Input registers" = 0
- "Data item address" then enter as follows:
- The digital inputs (DI) usually star at address 0 and are in the area "Bi = Input bits".
- The digital outputs (DO) usually star at address 0 and are in the area "Bo = Coil/output bits".
- Analog inputs (AI) usually star at address 0 and are in the area "Ri = Input registers".
- The digital input counters usually start at address 0 and are in the area "Ro = Holding/output registers".
 
- For communication of the PROMOTIC application with the modules of the DMM-xx line via the ARION protocol the AMiT company provides the ArionX activeX object. This object can be used in the PROMOTIC system.

We strongly recommend using the Modbus protocol communication, because the ArionX activeX object interface is quite comlicated.

PROMOTIC 8.3.21 SCADA system documentation - MICROSYS, spol. s r.o.

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