Flowserve MX HART Field Unit Manual de usuario descargar pdf (Pagina 59)

MX/QX HART Field Unit FCD LMENIM2340-00 – 1/14

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Lock All – No changes in the device’s conﬁguration, by any master, are allowed. In addition, Device Reset or

Power Loss does not affect the lock. Any Master can unlock.

Lock Status

Bit Mask Lock Device Description

0x01 Device Locked. Must be set if any lock is asserted in the Field Device.

0x02 Lock is Permanent. Must be set if lock does not clear on Device Reset or Power Loss.

0x04 Locked by Primary Master (Reset if Secondary Master). Must be set if locked by the Primary Master or Gateway.

0x08 Conﬁguration Locked and cannot be changed by any application. Must be set if “Lock All” code is received.

0x10 Locked by Gateway. Must be set (along with “Locked by Primary Master”) if locked by Gateway.

Device Variable Command Code

These codes indicate whether the Device Variable’s engineering value is forced to a ﬁxed value or is in normal operation.

Code Transfer Function

0 Normal

1 Fixed

RTC Flags

Flag Description

0x01

Non-Volatile Clock. When set the device contains a battery-backed clock. In this case the clock does not need

to be reset if there is a power loss.

0x02

Clock Uninitialized. The real-time clock has never been set with the date and time. For example, the clock is

volatile and power was removed from and restored to the device.

Trend Control Code

Code Description

0 Disable

1 Enable Single Data Point Trending

Enable Filtered Trending – The sample is ﬁltered using a time constant equal to one-third the trend sample

period.

Enable Average Trending – The value is obtained by dividing the sum of all samples in the period by the total

number of samples.

Burst Message Trigger Mode Selection Code

Code Description

0 Continuous – The burst message is published continuously at (worst case) the minimum update period.

1 Window – The burst message is triggered when the source value deviates more than the speciﬁed trigger value.

2 Rising – The burst message is triggered when source value rises above the speciﬁed trigger value.

3 Falling – The burst message is triggered when the source value falls below the speciﬁed trigger value.

4 On-Change – The burst message is triggered when any value in the message changes.

Burst Mode Control Code

Code Description

0 Off

1 Enable Burst on Token-Passing Data Link Layer Only

2 Enable Burst on TDMA Data-Link Layer Only

3 Enable Burst on TDMA and Token-Passing Data Link Layers

250 Reserved

251 Reserved

252 Reserved

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 71 72

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Flowserve MX HART Field Unit Manual de usuario Pagina 59

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