Memory Map
NOTE: Modbus refers to the hexadecimal register location. These parameters are formatted as unsigned 16 bit integers. Any real number such as temperature can be evaluated as a signed number, other parameters are bit mapped words that must be evaluated as single bits are bit groups.
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| BLOCK 0 |
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HEX | DEC | PARAMETER | DESCRIPTION | READ/WRITE | |
00 | 0 | Not used |
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| READ ONLY |
01 | 1 | TIME CONTROL | LOW BYTE - TIMER CONTROL | READ/WRITE | |
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| SIOSET | BIT 0 | – Timer Disabled (0), Timer Enabled (1) |
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| BIT 1 | – 7 SPARE |
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HIGH BYTE – SIO SETUP BITS 8 – 9 PARITY SETTING 00 = Even Parity, 7 bits, 1 Stop bit 01 = No Parity, 8 bits, 1 Stop bit 10 = Odd Parity, 7 bits, 1 Stop bit
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| BITS 10 – 11 RESPONSE DELAY |
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| 0 | = No delay applied to response |
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| 1 | = 10ms delay applied to response |
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| 2 | = 20ms delay applied to response |
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| 3 | = 30ms delay applied to response |
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| BITS 12 – 14 BAUD SELECT |
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| 000 | = 76.8K |
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| 001 | = 38.4K |
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| 010 | = 19.2K (DEFAULT) |
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| 011 | = 9600 |
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| 100 | = 4800 |
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| 101 | = 2400 |
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| 110 | = 1200 |
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| 111 | = 600 |
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| BIT 15 HOST FORMAT |
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| 0 | = MSI (PROP) |
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| 1 | = MODBUS (DEFAULT) |
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02 | 2 | TC_ZERO | LOW BYTE - TC ZERO CALIBRATION | READ/WRITE | ||
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| TC_SPAN | NUMBER |
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| HIGH BYTE – TC SPAN CALIBRATION |
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| NUMBER |
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03 | 3 | MV_ZERO | LOW BYTE – MV ZERO CALIBRATION | READ/WRITE | ||
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| MV_SPAN | NUMBER |
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| HIGH BYTE – MV SPAN CALIBRATION |
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| NUMBER |
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04 | 4 | PF | PROCESS FACTOR FOR CARBON OR | READ/WRITE | ||
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| DEWPOINT |
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| RANGE = 0 to 4095 |
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Page 12 of 23
11/14/2006 | Rev. 14 |
