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For error and exception responses specific to a parameter, see notes in Table 6-1
and Table 6-2.
NOTE: Writing a parameter value equal to its current value is a valid
transaction; this will not cause an error response.
6.3.3 Address Range霍尼韦尔温控器DC1040CT-70100B-E资阳代理商
The selectable address range is 1 - 255. The Digital Controller Programmer will
respond appropriately to Address 0 - broadcast messages - no matter what
address is selected.
NOTE: The total receiver load on the RS485 link must not exceed 32
standard RS485 unit loads. This applies to both standard and enhanced
RS485 communications. A Digital Controller Programmer presents
1
4霍尼韦尔温控器DC1040CT-70100B-E资阳代理商
standard RS485 load, so a maximum of 128 Digital Controller Programmers
are permitted. With other devices connected, the limit is dictated by the
sum total of all the RS485 receiver loadings.
6.3.4 Bit Parameters
The bit parameters are shown in Table 6-1.
6.3.5 Word Parameters霍尼韦尔温控器DC1040CT-70100B-E资阳代理商
The word parameters are shown in Table 6-2.
6-7Table 6-1 Bit Parameters
Parameter No. Notes
Communications Write Status 1 Read Only; 1 = Write Enabled, 0 = Write Disabled
Auto-Manual Control 2 1 = Manual Control, 0 = Automatic Control
Self-Tune 3 1 = Activate(d), 0 = Disengage(d)
Pre-Tune 1 4 1 = Activate(d), 0 = Disengage(d)
Alarm 1 Status 5 Read Only; 1 = Active, 0 = Inactive
Alarm 2 Status 6 Read Only; 1 = Active, 0 = Inactive
Auto Pre-Tune 7 1 = Enable(d), 0 = Disable(d)
Parameter Changed 霍尼韦尔温控器DC1040CT-70100B-E资阳代理商
2 8 Read Only; 1 = Change, 0 = No change
Loop Alarm Status 9 1 = Active/Enable, 0 = Inactive/Disable
Reserved 10
Reserved 11
Reserved 12
Reserved 13
Reserved 14
Reserved 15
Reserved 16
Table 6-2 Word Parameters
Parameter No. Notes
Controller Parameters
Process Variable 1 Read Only
Setpoint 2
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