4 resource block, Resource block function – Flowserve 400MD Logix User Manual
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Table 8.2 Block Parameter List Column Description
Column Name
Description
Index
A number that corresponds to the sequence of the parameter in the block parameter segment of the object dictionary. See
Object Dictionary, Section 8.16.
Origin
STND – Standard Fieldbus Parameter defined in FF specifications
MFG – Enhanced Parameter Manufacturer defined
Name
The mnemonic character designation for the parameter.
Data Type / Structure
Data type or structure for the parameter value:
1. Data types consist of simple variables or arrays and are:
•
Unsigned8, Unsigned16 Unsigned32 - An unsigned variable of 8, 16 or 32 bits.
•
Floating point - Floating point variable.
•
Visible string - Visible string variable.
•
Octet string - Octet string variable.
•
Bit string - Bit string variable.
2. Data Structures consist of a record which may be:
•
Value and Status - float - Value and status of a floating point parameter.
•
Scaling - Static data used to scale floating point values for display purposes.
•
Mode - Bit strings for target, actual, permitted and normal modes.
•
Access permissions - Access control flags for access to block parameters.
•
Alarm - float - Data that describes floating point alarms.
•
Alarm - discrete - Data that describes discrete alarms.
•
Event - update - Data that describes a static revision alarm.
•
Alarm - summary - Data that summarizes 16 alerts.
•
Simulate - Float - Simulate and transducer floating point value and status,and a simulate enable/disable
discrete.
• Test - Function block test read/write data.
Store
Indicates the type of memory where the parameter is stored:
S - Static — Writing to the parameter changes the static revision counter parameter ST_REV
N - Non-volatile — Parameter must be retained during a power cycle. It is not under the static update code.
D - Dynamic — The value is calculated by the block, or read from another block.
R - Readable — The value is readable by the host.
W - Writeable — The value is writeable by the host.
Default Value
Default values for the block parameters. These are the values that are used when:
•
the FBAP is initialized for the first time, or
•
selecting restart with defaults of the resource block parameter RESTART.
•
Performing a factory reset
8.4 Resource Block
Resource Block Function
The resource block contains data and parameters related to overall operation of the device and the FBAP. Parameters that describe the hard-
ware specific characteristics of the device and support application download operations make up the resource block.
Resource Block Parameters Table 8.3 lists the FF and Flowserve-defined parameters and their default values contained in the resource block.
Table 8.3 Resource Block Parameters
Index
Origin
Name
Store
Date Type
Default Value
0
STND
RESOURCE_BLOCK_2
SRW
Record
BLOCK
0
1
STND
ST_REV
SR
Simple
UNSIGNED16
0
2
STND
TAG_DESC
SRW
Simple
OCTET_STRING
“ “
3
STND
STRATEGY
SRW
Simple
UNSIGNED16
0
4
STND
ALERT_KEY
SRW
Simple
UNSIGNED8
0
5
STND
MODE_BLK
SRW
Record
MODE
0x01;0x01;0x11;0x10
6
STND
BLOCK_ERR
R
Simple
BIT_STRING
0
7
STND
RS_STATE
R
Simple
UNSIGNED8
4
8
STND
TEST_RW
WR
Record
TEST
0
9
STND
DD_RESOURCE
SR
Simple
VISIBLE_STRING
“ “
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