Description
These bits 1X00024H01 are set to enable multivariable messaging. Refer to the IO
configuration guide for additional information.
The HAI, HAO, and IAH modules have the ability to retrieve additional
variables from a field device. These 1X00024H01 variables are referred to as ‘multi
variables’ and are named PV (primary variable), SV (secondary vari
able), TV (tertiary variable), and QV (quarterly variable).
If the bit is set, the module will periodically retrieve whatever variables
exist for the device.
brand | Product Name | Product model | Order No |
EMERSON | modular | 1X00024H01 | nothing |
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Europe and America | Nationwide and overseas | yes | a year |
Place of shipment | Delivery method | How to use | Applicable industries |
Xiamen | Shunfeng Express | Commissioning and installation | Power Plant Steel Plant Cement Plant Shipboard Papermaking |
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Product features | Primary source of goods, supply by model | After sales guarantee | Chen 1810693-7731 |
The 1X00024H01 definitions of PV, SV, TV, and QV are found in the user’s manual
for the field device supplied by the device manufacturer. The standard
format of these four variables is IEEE 794, a floating-point format.
You must configure IO point records to cause the Controller to scan the
module and retrieve the variables. Refer to the “Point Builder User
Guide” (U3-1041) or “Ovation Developer Studio” (NT-0060) or
(WIN60) for additional information.
In the IO 1X00024H01 configuration tool, you can set these flags on a per-channel ba
sis to allow HART messaging, including Multivariable messaging, to
flow on that channel.
You should ensure that these bits are cleared for non-HART field devic
- To avoid a HART communication error message, set each bit at “0”
when connecting a non-HART output device.
After module confifiguration, the bank of eight channel LEDs (LEDs 1
through 8) is used to indicate HART communication activity. When a HART
message is sent, the LED for that particular 1X00024H01 channel is illuminated. When the
HART response is received correctly, the LED is extinguished. Therefore,
when all is normal, that is, messages and responses are properly exchanged,
a single LED blink will be observed on the module’s front cap.
If a HART message is sent and no response is received, the HART Analog
Output module exclusive-OR’s the channel LED display with hex code 0xFF.
This results in all channel LEDs being illuminated except for the selected
channel. For example, if the HART Analog Output module sent a HART
message to a device on channel 2, but the device was not connected to
channel 2, the module would fifirst illuminate LED 2 (all seven other channel
LEDs extinguished). The module would then extinguish LED 2 and flflash the
other seven channel LEDs. This status indicates that the module sent a HART
message on channel 2 and did not receive a valid response message after the
initial message attempt or after any of the subsequent message retries.
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