EMIS Interface Description - Measurement Solutions

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Specification Euro Interface EMIS Interface Description 3.4.2 Access Rights For each variable access rights are defined laying down the OBS scope of access: � R/W Read / Write access is allowed. The OBC can read and change variable. � R Read access is allowed. The OBC can read but not change variable. � W Write access allowed. Whilst variable can be set, the value cannot be read. Sening® Innovative Tank Truck Systems • The scope for access to several variables can change as a function of the operating mode of the connected devices. There is, for instance, no access to the QAS event variables during discharging. • The attempt to change a write-protected variable is refused (the SET telegram is answered with NAK). A corresponding error message is placed in ADMIN,STATUS,LASTERROR. • Setting variables where only a write access is possible triggers sequences for which the variable value is of no significance or for which later access of the variable serves no purpose. A read access on these variables is answered by a blank expression (““). • The access rights of the variables are listed in the tables in Chapter 4 / Page 25 "Access". 3.5 Operating States All EMIS components have the variable "STATUS,Mode". This variable can adopt the following states: State Components Meaning All Undefined / unknown READY All Ready for operation ALARM All A fault that does not prevent operation from continuing has occurred. Alarms are generally caused by devices on the system (CAN) bus. ERROR All Error state; see STATUS,LastError for the error message BUSY All OBC, METER, QAS PRN SERVICE ADMIN INVALID GPS Example: The meter is in the process of performing a function that may not be interrupted (e.g. a discharge). All variables are locked, and may not be altered from outside. Indicates the allocation status of the printer interface. Possible clients are the devices at the CAN bus: QAS, METER or the OBC. READY means that the printer inteface is free and available for a client. Indicates the EMIS operating mode. indicates that irrespective of all settings at the COM(0) an OBC interface with 9600 baud is operated (see ADMIN Description). The data of this node is invalid due, for instance, to poor reception conditions. 16 Rev. 2.00 / MB / jp / Juli 2008 MNF19002EUS / DOK-411E
Sening® Innovative Tank Truck Systems 3.6 Examples of the Procedure Specification Euro Interface EMIS Interface Description • For enhanced readability the OpCodes, nodes and sub-nodes in the following examples are shown in capitals and the names of the variables in capitals and lowercase lettering. Only for reasons of space are the line breaks inserted in the telegrams. • Some telegrams are only reproduced in an abbreviated form. • Control characters are marked with pointed brackets ; comments by //. 3.6.1 REQUEST - Standard Queries All the variables are provided by the EMIS interface, and can be accessed individually or as a structure (group). Individual query: Direction Telegram EMIS REQUEST,ADMIN,DEVICE,Name OBC OBC REPORT,ADMIN,DEVICE,NAME=”F.A.Sening EMIS” EMIS Structure query: Direction Telegram EMIS REQUEST,ADMIN,DEVICE OBC REPORT,ADMIN,DEVICE,SERIAL=”191234”; OBC NAME=”F.A.Sening EMIS”; HWVERSION=”02.00EMIS2”; SWVERSION=”03.02EMIS2” EMIS MNF19002EUS / DOK-411E Rev. 2.00 / MB / jp / Juli 2008 17 1 2 3 4 5 6 7 8 9 A Implementation
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The specifications contained herein
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