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Chapter 3: Controller Parameter Descriptions
Communications Specification 75
Cascade Heat/Cool Span (90)
This parameter is multiplied by the heat and cool outputs of the primary
loop in the cascade calculation.
• Range: –9999 to 9999.
• Default: 0.
Ratio Control Master Loop Number (91)
This parameter specifies the ratio control master loop number to obtain
the process variable. This number cannot be the same as the current
loop. Setting this to 0 disables the ratio control feature for this loop.
• Range: 0 (none) to MAX_CH.
• Default: 0 (none).
Ratio Control Minimum Setpoint (92)
This parameter specifies the minimum allowable setpoint in the ratio
control calculation. The resulting setpoint will not go lower than this.
This number must not be higher than the maximum setpoint (command
89).
• Range: –999 to 9999 (depending on the precision in the master loop).
• Default: 250 (25°F) for a J-type thermocouple.
Ratio Control Maximum Setpoint (93)
This parameter specifies the maximum allowable setpoint in the ratio
control calculation. The resulting setpoint will not go higher than this.
This number must not be lower than the minimum setpoint (command
88).
• Range: –999 to 9999 (depending on the precision in the master loop).
• Default: 250 (25°F) for a J-type thermocouple.
Ratio Control Control Ratio (94)
This parameter is multiplied by the master loop process variable in the
ratio control calculation. These values are multiplied by 10 to retain 0.1
ratio precision.
• Range: 1 to 9999 (control ratio 0.1 to 999.9).
• Default: 10 (control ratio 1.0).
Ratio Control Setpoint Differential (95)
This parameter specifies the setpoint used as an offset for each loop.
- CLS200, MLS300 1
- Communications 1
- Specification 1
- Warranty 2
- Contents 3
- Protocol Syntax 9
- Transaction Sequence 10
- Packet Format 12
- Codes in a Packet 12
- Error Checking 14
- Cyclic Redundancy Check (CRC) 15
- Examples 16
- Block Write 19
- Message Data 20
- Data for a Write Command 21
- Two-Byte Data Types 21
- Figuring Block Size 21
- Anafaze/AB Data Table Summary 22
- Number Description 24
- Address 24
- Type Number of Bytes 24
- Overview 27
- The Query-Response Cycle 28
- Serial Transmission 28
- Message Framing 29
- Contents of the Data Field 30
- CRC Error Checking 31
- Function Codes 32
- Diagnostic Subfunctions 33
- Writing Data 36
- Reading Data 36
- Write Examples 38
- Modbus-RTU Data Table Summary 39
- Chapter 3: 45
- All Units 17, 18 47
- Enhanced Features options 49
- Parameters (by number) 51
- Input Type (3) 52
- Output Type (4) 53
- Setpoint (5) 54
- Process Variable (6) 54
- Output Filter (7) 54
- Output Value (8) 55
- Alarm Deadband (12) 55
- Alarm_Status (13) 56
- Ambient Sensor Readings (15) 58
- Pulse Sample Time (16) 58
- High Process Variable (17) 58
- Low Process Variable (18) 58
- Precision (19) 59
- Cycle Time (20) 60
- Zero Calibration (21) 60
- Full Scale Calibration (22) 60
- Digital Inputs (25) 60
- Digital Outputs (26) 61
- Override Digital Input (28) 61
- Override Polarity (29) 61
- System Status (30) 62
- System Command Register (31) 62
- Data Changed Register (32) 63
- Input Units (33) 63
- EPROM Version Code (34) 64
- Options Register (35) 64
- High Reading (37) 65
- Low Reading (38) 65
- Heat/Cool Spread (39) 65
- Startup Alarm Delay (40) 66
- • Range: See tables below 67
- • Default: 0 67
- Current Segment (47) 68
- Segment Time Remaining (48) 68
- Current Cycle Number (49) 68
- Tolerance Alarm Time (50) 68
- Last Segment (51) 68
- Number of Cycles (52) 69
- Ready Setpoint (53) 69
- Ready Event States (54) 69
- Segment Setpoint (55) 70
- Segment Time (58) 72
- Tolerance (59) 72
- Ramp/Soak Flags (60) 72
- Output Limit (61) 73
- Output Limit Time (62) 73
- Alarm_Control (63) 74
- Alarm_Acknowledge (64) 74
- Alarm_Mask (65) 74
- Alarm_Enable (66) 74
- AIM Fail Output (68) 75
- Output Linearity Curve (69) 76
- SDAC Mode (70) 76
- SDAC Low Value (71) 76
- SDAC High Value (72) 76
- Save Setup to Job (73) 77
- Input Filter (74) 77
- Loop Alarm Delay (75) 77
- Loop Names (77) 77
- Channel Name (78) 78
- Manufacturing Test (80) 78
- Cascade Maximum Setpoint (89) 80
- Cascade Base Setpoint (87) 80
- Cascade Minimum Setpoint (88) 80
- Loop Status (96) 82
- Output Type/Disable (97) 82
- Output Reverse/Direct (98) 82
- Controller Type (99) 83
- Ramp/Soak Profile Number (100) 83
- Controller Address (101) 83
- Baud Rate (102) 83
- Ready Events (103) 84
- Appendix A: 85
- Communications Driver 85
- Close_Comm_Port() 86
- DownLoad() 86
- UpLoad() 87
- Glossary 89
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