Spectrum-controls 1734sc-OE2CIH Manual de usuario descargar pdf (Pagina 48)

4-12 Chapter 4: OE2CIH and HART

User’s Manual Pub. 0300272-01 Rev. A.0

Table 4-8 Input-Only Assembly

Instance:

ID:

Description:

Total Size:

100

Channel Status Only

12 Bytes RSL 5 K (DeviceNet 8 bytes)

Bit

Analog

data 4

bytes

0×00-0×03

Module Status - UINT

High Byte–Channel 1 Status

Low Byte–Channel 0 Status

Bits

13-14

not

used

HCA

LCA

Bits 05-

06 not

used

HCA

LCA

Channel Status Bits

 CF = Channel Fault status; 0 = no error; 1 = any fault (LCA, HCA, OC)

 CM = Calibration Mode; 0 = no calibration taking place; 1 = calibration in

process

 LCA = Low Clamp Alarm; 0 = no alarm; 1 = Low alarm equal to or less than

Low Limit user value.

 HCA = High Clamp Alarm; 0 = no alarm; 1 = High alarm equal to or greater

than High Limit user value.

 OC = Open Circuit; 0 = no error; 1 = open circuit

 HF = Hard Fault; 0 = no fault; 1 = fault

Module Status

 0 = Module OK

 1 = Watchdog Fault

 2 = Channel Hard Fault

 3 = Bad or No Configuration

NOTE

The above status codes are in priority order where multiple conditions

may exist.

Channel Hard Fault

In the case where one of the HART modem CPUs cannot be communicated with, the

channel is placed in a Hard Fault Mode. The HF bit is set for that channel and the Module

Status is set to 2. The HART modem CPU is held in reset until the module is power-

cycled. This action may or may not disable the output since the reset line runs through the

same isolation IC as TX and RX. The channel status LED is set to solid Red while the

Module Status LED is set to flashing Red. The other channel is allowed to operate

normally.

1 2 ... 43 44 45 46 47 48 49 50 51 52 53 ... 73 74

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Spectrum-controls 1734sc-OE2CIH Manual de usuario Pagina 48

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