Word 1 | System Info Register | |||
| This word enables the module’s operation, and specifies if user shutdown values are | |||
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| CAUTION | |
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| Zero is an illegal value for the parameter field (words | |
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| A zero value in the parameter field will cause an output shut down state, | |
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| and no inputs or outputs are updated. Any bit set in the parameter field, | |
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| including those defined as not used, will enable the module. | |
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| Failure to follow this precaution can result in injury or equipment | |
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| damage. | |
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| Word 1 |
| Description | |
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| Bits 0 ... 14 |
| Not used | |
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| Bit 15 |
| 0 = Disables user defined shutdown values. | |
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| 1 = Enables user defined shutdown values. |
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Valid setting for word one are 0001 ... FFFF
The module’s default value at power-up for this register is zero
(module shut down).
Word 2 | Discrete Fail State Reaction and Value Register | |||
| This word combines the value and reaction in a fail state. | |||
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| Word 2 | Description | ||
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| Bit 0 ... 7 | Discrete fail state value for outputs 1 ... 8 | ||
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| Bits 8 ... 13 | Not used | ||
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| Bit 14 | 0 | = hold last value, 1 = user defined value | |
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| Bit 15 | 0 | = all outputs reset, 1 = check bit 14 | |
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Word 3 | Analog Fail State Reaction Register | |
| This word contains two 2 bit fields that define the fail state for each channel. The four | |
| possible values of fail state are as follows. | |
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| 2 Bit Value | Fail State |
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| 00 | Minimum output voltage |
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| 01 | Hold last value (default) |
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| 10 | User defined shutdown value |
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| 11 | Hold last value (not normally used) |
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14 | 31005009 01 November 2003 |
