SMAR ld301, Инструкция по эксплуатации и техническому обслуживанию

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LD301- Operation and Maintenance, Instruction manual
3.12
ADDRESSING - The LD301 includes a variable to define the equipment address
in a HART

network. Addresses may go from value "0" to "15"; addresses from "1"
to "15" are specific addresses for multidrop connections. This means that, in a
multidrop configuration, the
LD301 will display the message MDROP for addresses
"1" to "15".
NOTE :
The output current will be increased to 4 mA as the LD301 address, in the
Transmitter mode, is altered to another value than "0" (this does not happen
when the
LD301 is configured in the Controller mode).
The LD301 is factory configured with address "0".
DISPLAY INDICATION - the LD301 digital display is comprised of three distinct
fields: an information field with icons indicating the active configuration status, a 4
½ digit numeric field for values indication and a 5 digit alphanumeric field for units
and status information.
The LD301 may work with up to two display configurations to be alternately
displayed at 2 second intervals. Parameters that may be selected for visualization
are those listed on Table 3.4, below.
CURRENT
Current in milliampères
PV%
Process Variable in percentage
PV Process Variable in engineering units
MV%
(*)
Output in percentage
TEMP Ambient temperature
TOTAL
Total accumulated by the totalizer
SP%
(*)
Setpoint in percentage
SP
(*)
Setpoint in engineering units
ER%
(*)
Error in percentage (PV% - SP%)
S/INDIC Used to cancel the second indication
Table 3.4 - Variables for Display Indication
NOTE:
Items marked with an asterisk can only be selected in the PID mode.
Total can only be selected if enabled.
WRITING PROTECTION - This feature is used to protect the transmitter
configuration from changes via communication. All configuration data are writing
protected.
The LD301 include two write protection mechanisms: software and hardware
locking; software locking has higher priority.
When the LD301 writing software protection mechanism is enabled, it is possible,
by means of specific commands, to enable or disable the write protection.
PASSWORDS - this service enables the user to modify the operation passwords
used in the LD301 . Each password defines the access for a priority level (1 to 3);
such configuration is stored in the LD301 EEPROM.
Password Level 3 is hierarchically superior to password level 2, which is superior
to level 1.
Equipment Maintenance
Here are grouped maintenance services related with the collection of information
required for equipment maintenance. The following services are available: Order Code,
Serial Number, Operation Counter and Backup/Restore.
ORDER CODE - THE Order Code is the one used for purchasing the equipment,
in accordance with the User specification. There are 22 characters available in the
LD301 to define this code.