Marathon Monitors Inc.
| Name | Description |
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| Pid | PID list |
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| G.SP | If Gain Scheduling has been enabled (see Chapter 4), this parameter sets |
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| the PV below which ‘Pid.1’ is active and above which ‘Pid.2’ is active. |
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| SEt | ‘Pid.1’ or ‘Pid.2’ selected |
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| Pb | Proportional Band | (SEt 1) |
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| (in display units) |
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| ti | Integral Time in secs(SEt 1) |
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| td | Derivative Time in secs | (SEt 1) |
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| rES | Manual Reset (%) | (SEt 1) |
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| Hcb | Cutback High | (SEt 1) |
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| Lcb | Cutback Low | (SEt 1) |
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| rEL.C | Relative Cool Gain | (SEt 1) |
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| Pb2 | Proportional Band | (SEt 2) |
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| ti2 | Integral Time in secs(SEt 2) |
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| td2 | Derivative Time in secs | (SEt 2) |
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| rES.2 | Manual Reset (%) | (SEt 2) |
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| Hcb2 | Cutback High | (SEt 2) |
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| Lcb2 | Cutback Low | (SEt 2) |
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| rEL.2 | Relative Cool Gain | (SEt 2) |
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The following three parameters are used for cascade control. If this facility is not being used, then they can be ignored.
FF.Pb | SP, or PV, feedforward propband |
FF.tr | Feedforward trim % |
FF.dv | PID feedforward limits ± % |
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mtr | Motor list - see Table |
tm | Valve travel time in seconds |
In.t | Valve inertia time in secs |
bAc.t | Valve backlash time in secs |
mp.t | Minimum ON time of output pulse |
U.br | Valve sensor break strategy |
AACC 2000 Carbon | 40 | Nov. 1, 1997 |
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