MDIS device communication protocol

Description  
Communication line configuration
Communication station configuration
Configuration of interfaces
I/O tag configuration
Literature
Changes and modifications
Document revisions

Description


MDIS device protocol is used to control input-output peripherals and hardware of watchdog of devices produced by the MEN company.

Communication line configuration


  • Communication line category: API

Communication station configuration


Station protocol parameters

ParameterDescriptionDefault value
Full Debug
Logging is enhanced with listings that enable fast error detection.NO
I/O Interface Name
Unique text identifier of interface with binary input-outputs.z17_9
Watchdog Interface Name
Unique text identifier of the interface of HW watchdog.xm01bc_1
Control Interface Name
Unique text identifier of the interface that is used to configure other interfaces.z17_1

Configuration of interfaces


The configuration of MDIS5 interfaces is possible through Device Manager of Windows OD, on the "MDIS5 devices" tab.

Types of interfaces can be identified by their name. Binary IO peripheral is a device called 16Z037_GPIO. The name of the configuration interface is 16Z034_GPIO. In Device Manager, you may find more devices of the same name. Therefore, you should display the properties to identify the particular interface. This interface should be placed in "cham-slot 2(is instance 2)" (see figure below). Next interface is HW watchdog, its name is XM01BC.

MDIS5 configuration

Each of these devices can be addressed via its unique identifier. The modification of identifier can be done in "Device Manager -> MDIS device -> Properties -> "Device Settings" tab.

Device settings

I/O tag configuration


Possible I/O tag types: Ai, Ao, Ci, Co, Di, Do.

Addresses of digital inputs 1-8: DIx, e.g. DI1, DI2 .. DI8

Addresses of digital outputs 1-8: DOx, e.g. DO1, DO2 .. DO8

Addresses related to watchdogs:

AddressDescription
WD_TIMESet / query the watchdog time (in milliseconds)
WD_ACTIVESet / query the watchdog status (0-inactive, 1-active)
WD_SHUTDOWNSTATESet / query the shutdown status (0 - watchdog shot, 1-watchdog didn't shoot)
WD_TRIGGERActivation (triggering ) of the watchdog

Literature


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Changes and modifications


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Document revisions


  • Ver. 1.0 – 13.5.2015 - the creation of the document

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