Vaisala MMT330 Bedienungsanleitung Seite 166

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User's Guide _______________________________________________________________________
166 __________________________________________________________________ M210764EN-F
Measurement Data (Read-Only)
Table 35 Measurement Data Registers
Name
Float
Integer
Unit
T
0003…0004
0258 (×0.01)
°C
a
w
0029…0030
0271 (×0.0001)
Available measurements depend on the instrument configuration. Values
may be unavailable also in case of device failure. Read status registers or
exception status outputs to check for failures.
NOTE
Only real-time data can be read from the instrument. Data that is
recorded in the transmitter’s memory (internal memory or data logger
module) cannot be read through Modbus.
Status Registers (Read-Only)
Table 36 Status Registers
Name
Address
Description
Fault status
0513
1 = No errors
Online status
0514
1 = Online data available
Error code (bits 15…0)
0516
Bit field that represents the
error codes listed in Table 29
on page 138. Active errors are
set to 1. For example, if bit 14
is set to 1, error code E14 is
active.
Error code (bits 31…16)
0517
Error information can retrieved also with function code 08, sub-function
02.
NOTE
Basic status information of the MMT330 transmitter is also available
with the Read Exception Status function code 07. For details, see section
Exception Status Outputs on page 167.
Seitenansicht 165

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