Conair MPA, MPW APPENDIX B-4, Spi Status Words, Status, Machine, Chiller Spi Commands, Poll 0x21

SPI STATUS WORDS

Status, Machine 2

Poll: 0x21 0x44

SPI STATUS WORD

Open

Open

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Fault,CAL

Fault,Sensor

Alarm,Machine

Alarm,Process

Alarm,System

Processing

Word BIT position

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

EEprom error

SET

SET

*

A/D converter error

SET

SET

*

CJC Error

SET

SET

*

RAM hardware

SET

SET

*

ROM checksum

SET

SET

*

Probe Failure

SET

SET

SET

*

E/M Hi temp safety

*

Prog. Hi temp safety

*

Output monitor failure

SET

SET

*

Low water pressure

*

High deviation alarm

*

Low deviation alarm

*

Prog. Lo temp safety

*

Pump overload

SET

SET

*

Refrig. Pressure

SET

SET

*

Oil Safety

SET

SET

*

Compressor overload

SET

SET

*

Freeze Stat

Low water level

SET

SET

*

Test Mode

*

Phase error

*

NOTES:

* The SPI I/O list defines the Processing bit as being cleared if the unit is not processing; otherwise it is SET.

Elsewhere on the chart:

● If a bit is not shown to be SET, it is cleared.

● The System Alarm bit is SET if an alarm is present. It is the logical OR of Process alarm and Machine alarm. ● Processing, System Alarm, Process Alarm and Machine Alarm bits are repeated for Process Status, Machine 1

Status and Machine 2 Status.

APPENDIX B-4 CHILLER SPI COMMANDS UGH004/0999