Yokogawa ADMAG AXR - Manual (Page 32)

<4. WIRING>
4-8
IM 01E30D01-01EN
600
250
14.7 20.6 28.9 42
Power supply voltage E (V DC)
R= 0.0236
E−14.7
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Digital
Communication
Range
(BRAIN or HART)
External
Load
Resistance
R (Ω)
Figure 4.6.3 Relationship between Power supply
voltage and external load resistance
HART
Communication signal:
HART communication signal (superimposed
on 4 to 20 mA DC signals)
Note: HART is a registered trademark of the HART
Communication Foundation. Use the setting tool
that has the same protocol revision as AXR. It is not
possible to communicate with HART7 AXR in using
HART 5 or HART 6 setting tool.
Conditions of Communication Line:
Supply Voltage: 20.6 to 35 V DC
Load Resistance: 250 to 600 Ω
(including cable resistance)
Refer to Figure 4.6.3.
HART Protocol Revision
HART protocol revision can be selected from 5 or
7 when ordering. (“-J” only)
The protocol revision can be changed by user
configuration.
The HART protocol revision at the time of
shipment is shown by the last number at the
serial number column of the name plate.
Note: Protocol revision supported by HART configura-
tion tool must be the same or higher than that of
AXR.
Selection of HART 5/ HART 7
Output Signal
Code
-E -J
Ordering
Information
– Specify “5” Specify “7”
HART Protocol
Revision
HART 5 HART 7
Selec-
tion
guide
Require-
ment for
HART 7
function-
ality
NO
YES
Be sure to
confirm the
protocol
revision of
the HART
configura-
tion tool
shown in
Note 2.
Other
condi-
tions
Not avail-
able to
switch to
HART 7
protocol
after deliv-
ery.
Available
to switch
to HART
7 proto-
col after
delivery by
user-con-
figuration.
Available
to switch
to HART
5 proto-
col after
delivery by
user-con-
figuration.
Remarks Note 1 Note 2 Note 2
Note 1: "-E" is HART5 exclusive model and will be terminated.
"-J" is recommended for HART communication.
Note 2: HART protocol revision for the device and HART
configuration tool
HART 7 communication is supported by FieldMate
R2.04 or later.
Protocol revision supported by HART
configuration tool
5 7
AXR, HART 5 Available Available
AXR, HART 7 Not available Available
(2) Pulse Output, Status Output, Alarm Output
One Output can be selected from pulse, alarm, or
status through the parameter setting.
Refer to Table 4.6.2 as wiring examples.
Digital Output:
Transistor contact output, open collector
Contact rating: 30 V DC, 120 mA DC
Low level: 0 to 2 V DC (Refer to Figure 4.6.3)
HIGH level
LOW level
0 V
0 to 2 V
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Figure 4.6.4 High and Low levels (transistor contact
output)