Glossary UH50 – FOR INTERNAL USE ONLY!
Gyr GmbH
Glossary UH606-101b
Page
14
of
38
Modes
Nb+
Nb-
Pb+
Pb
Eb
Qb
Normal mode
, with
calibration seal
Normal mode, without calibration seal
Parameter setting menu
(with buttons)
Test mode
(by telegram or with buttons)
Calibration mode
(by telegram or “pads”)
Test mode (manufacturer-internal)
Nb+
Nb-
Eb
Qb
Pb+
Pb
Calibration
seal is set
Calibration seal is
not
set
Nor
mal
m
ode
Servic
e
mod
e
Calibr
ation
m
ode
Pb+
Pb
The
UH50
can optionally be fitted with up to two pluggable
modules
.
The module interfaces are processed – like the optical interface – in each one-second pass in a
defined order. Each communication requires a certain time budget that impairs overall
availability. That means that during communication with an interface, the other communication
paths are temporarily not available and cannot be operated for a lengthy period.
If the sum of the communication times for the interfaces is greater than the measurement
timebase, the missing measurements are corrected on the next measurement. An excessive
number of missing measurements can result in the interfaces being blocked, which can have
effects on the external response of the modules.
In the case of very short measurement timebases and frequent communication, the exception
described can become the rule. A nominal measurement timebase of 500 ms then, for example,
results in an only 2-second measurement timebase.
Permissible combinations for placement in heat meter:
Slot for module #2 is fitted with...
Pulse
module
Analog
module
Standard
pulses
Fast pulses
*)
M-bus
Current
Loop
Radio
Analog module
yes
yes
yes
yes (4)
yes
yes
Standard pulses
yes
yes (3)
yes (2)
yes (4)
yes
yes
Pulse
module Fast pulses
no
no
no
no
no
no
M-bus
yes
yes
yes
yes (4) yes (1)
yes
Current loop
yes
yes
yes
yes (1)
no (5)
yes
Slot for modul
e
#1
can be fitted with ...
Radio module
no
no
no
no
no
no
Restrictions:
*)
Only 1 module with fast pulses possible, only permissible on slot 2;
min. pulse duration = 2 ms, if no pulse module is fitted in slot 1
min. pulse duration = 5 ms, if a further pulse module is fitted in slot 1
(1)
In the case of an M-bus with a controller link, the CL read-out can take up to 40 s
(2)
Pulse length of the fast pulses min. 5 ms
(3)
The first and second channel can be parameterized individually
(4)
The secondary address for both modules can only be changed via Module No. 1
(5)
Because of response time 30..40s, too long for 2 modules
**)
Subsequently plugging a second pulse module into slot 1, can change the set
pulse duration for module 2!
The
analog module
converts a selectable
measured value of the heat meter into an
analog
output signal (channel 1, channel 2).
Analog module
Output signal:
Channel 1,
Channel 2
