FieldServer FS-8700-64 instruction manual

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FS-8700-64 ATMI ACM

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4.4.5Map Descriptor Example2 – Gas values for the current (most recent) port sample.

This example illustrates a map descriptors used to store the data from the most recent port sample. The map descriptor stores the following information :-

1.Port Number

2.Up to 16 gas values (The gas name is not provided) The position in the array is based on the Gas Number.

For example. A port may sample two gasses. The first is Gas #4 and the second may be Gas #2, The driver stores the value of Gas#4 in array location 4 and stores the value of Gas#2 at array location 2.

The following additional information may also be stored if the DA_Bit_Name & DA_Byte_Name parameters are specified.

3.A bit indicating the number of the port

4.The Alarm/Warning States for each gas

Map_blocks

Map_block_Name, Data_Array_Name, Data_Array_Offset, Function, node_name, protocol, timeout, atmi_data , da_bit_name, da_byte_name

Current_Port_MD, DA_CURR_PORT, 0

, passive , ACM1 , ATMI ,120.0s , current-port, DA_PORT , DA_PORT_ALA

The current port number and up to 16 gas values are stored in this data array.

The 1st element stored is the port number. The next 16 values stored are the gas values (multiplied by 100). The location is based on the Gas Number and not the row number.

This keyword tells the driver to use this map descriptor to store the current port’s sample data..

If x is the number of the current port (port most recently sampled) then the data array position corresponding to x is set to 1 and all other elements are set to zero.

E.g. If Port 1 is the current port then the 2nd element of the array (index=1) is set non-zero.

The array can be any data format.

If the DA_Bit_Name parameter is omitted then this data is not stored.

Alarm / Warning Status for each gas is indicated in this array.

If gas x is in alarm then x is used as the index into the array. E.g. If Gas #1 is in alarm then the 2nd element of the array (index=1) is set non-zero.

The value of each element indicates alarm/warning. If the Value is 1 then the gas in alarm. If the value is two then the gas is at a warning level.

The array format should be capable of storing a value. If a Bit/Packed_Bit format is used then you will not be able to distinguish between an alarm/warning.

If the DA_Byte_Name parameter is omitted then this data is not stored.

FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.fieldserver.com Tel: (408) 262-2299 Fax: (408) 262-9042 Toll_Free: 888-509-1970 email: support@fieldserver.com

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Contents FS-8700-64 Atmi ACM Effective for all systems manufactured after May 1Table of Contents FS-8700-64 Atmi ACM Atmi ACM DescriptionProvided by user FieldServerHardware Connections Atmi ACM PanelSection Title Configuring the FieldServer as a Atmi ACM ClientData Arrays Column Title Function Legal ValuesFS-8700-64 Atmi ACM Example Default 1 secondClient Side Connections AtmiClient Side Map Descriptors Client Side NodesPassive Gas-value, == Port-values MAP1 Page Page Page Configuring the FieldServer as a Atmi ACM Server Driver Notes Data position in the Data ArraysDriver Stats Exposing Driver StatsContents Driver Error Messages FS-8700-64 Atmi ACM Demand & Lock Scan TimeoutsMalfunctions Gas Values & Scaling Alarms and/or WarningsMalfunction Major Type Mafunction Minor Type TemplowCurrent Slot Composite Validation Scan vs Normal Slot ScanRevision Control PMCDNC TOCJDM

FS-8700-64 specifications

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