Communication with Johnson Controls devices
An ActiveX driver
was created for the communication of a PROMOTIC application with Johnson Controls
PLC's. The driver is determined for the communication via the computer's serial port by the N2Bus
protocol. The ActiveX driver is included in the PROMOTIC system in the folder: /Pm/Examples/Commun/Johnson/ActiveX
(see Example of communication with Johnson Controls PLC devices
The driver supports the following types of controllers: DX9100
, even time programs can be edited), TC91xx
The driver supports up to 6 COM ports. It is suitable for applications where, for example, the number of controllers on one bus is too high and the communication is slowed down.
If the driver is not registered, it runs in the DEMO mode. DEMO provides real values only in limited time (30 minutes). After this time it provides only 0 instead of real values. After restart it provides correct values again.
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.
Supplier of ActiveX item (i.e. of the communication driver):
MII Slovakia, s.r.o., Slovakia, www.mii.sk
Ing. Miroslav Koco, email: firstname.lastname@example.org, phone: +421 917 475 764