Communication with AMiT 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 (www.amit.cz)

Communication via the AtouchX activeX object

This document amends the trade-technical information to the AMiT AtouchX communication drivers. For the basic technical information to the AtouchX driver and the method of its using in the PROMOTIC system see the Example of communication with Amit devices, Preconfigurations "Communication via ActiveX AtouchX by the AMiT company with the AMiT device". The complex information to the AtouchX driver is provided by the AMiT.

Basic properties:

The communication with the AMiT HW (Amiris, Adis, etc.) can be carried out by methods:

- RS232 or RS485 serial link

- 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. 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.

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 Modbus Master protocol.

- For easy integration of this driver into the application it is handy to use:

- Preconfigurations "PmModbusMr - Set for AMiT modules DMM (Modbus RTU)"

- 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 the communication 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.

Trade terms

In the price list there is the AtouchX driver stated under the AMiT trade mark. The AtouchX is available on the 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.

Note:

The MICROSYS, spol. s r.o. company is a business partner of the AMiT company. For the implementation of standard applications in the area of heating (PROMOTIC HEAT), energy (PROMOTIC ENERG) and others - it often uses control systems from this producer.

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

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