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Protocol data overview
From MVA005 to Control unit: (DIRECTION-1: TRANSMIT DATA - FROM ACT to RCU)
Offset | Size | Bit-range | Data | Short-Cut | Description | Valid Range | Scale | Unit | ||
0 | 8 | DB3.7... DB3.0 | Current value | CV | Current Valve position | 0…100dec | 0…100 | % | ||
101…255 (0x65…0xFF) reserved | ||||||||||
8 | 1 | DB2.7 | Local Offset Mode | LOM | Local Offset Mode defines the format of LO | 0 = LO is relative | ||||
9 | 7 | DB2.6 … DB2.0 | Local Offset | LO | LOM =1, use with temperature set point mode (DIR-2, DB1.2, SPS = 1) | |||||
Current temperature set-point plus / minus local offset is communicated as an absolute temperature value [°C]
| Temperature set point °C +/- local offset °C | |||||||||
0…80dec | 0…+40 | ºC | ||||||||
81…255 (0x51…0xFF) reserved | ||||||||||
LOM = 0, use with valve position mode (DIR-2, DB1.2, SPS = 0) | ||||||||||
Local offset setting is communicated directly | 0x0: 0 °C (Default) | |||||||||
16 | 8 | DB1.7… DB1.0 | Temperature | TMP | Local Ambient or Feed temperature
(Selected by | Local ambient temperature: | ||||
0…80dec | 0…+40 | °C | ||||||||
81…254 (0x51…0xFE) reserved reserved Feed temperature: | ||||||||||
0…160dec | 0…+80 | °C | ||||||||
161…254 (0xA1…0xFE) reserved reserved 0xFF = Sensor failure or out of range (either ambient or feed or both of them) | ||||||||||
24 | 1 | DB0.7 | Temperature Selection | TSL | Indicates which sensor is used for TMP | 0: Ambient sensor temp 1: Feed sensor temperature | ||||
25 | 1 | DB0.6 | Energy Input Enabled | ENIE | Harvesting status | 0: Not harvesting 1: Harvesting active | ||||
26 | 1 | DB0.5 | Energy Storage | ES | Charge level of energy storage | 0: Low, almost discharged 1: Sufficiently charged | ||||
27 | 1 | DB0.4 | Window open detection | DWO | Window open detection | 0: No open window detected 1: Open window detected
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28 | 1 | DB0.3 | LRN Bit | LRNB | Telegram type | 0: Teach-in telegram 1: Data telegram | ||||
29 | 1 | DB0.2 | Radio Com Error | RCE | Indicates radio communication errors | 0: Radio communication is stable 1: Six or more consecutive radio communication errors have occurred | ||||
30 | 1 | DB0.1 | Radio Signal Strength | RSS | Weak radio signal warning | 0: Radio signal is strong 1: Radio signal is weak | ||||
31 | 1 | DB0.0 | Actuator obstructed | ACO | Reports blocked actuator (motor) | 0: Actuator working correctly 1: Actuator is blocked | ||||
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Offset | Size | Bit-range | Data | Short-Cut | Description | Valid Range | Scale | Unit |
0 | 8 | DB3.7… DB3.0 | Valve position or Temperature Set point | SP | Valve Position or Temperature Set point
Selection with DB1.2 | 0..100dec | 0…100 | % |
101…255 (0x65…0xFF) reserved | ||||||||
0…80dec | 0…+40 | ºC | ||||||
81…255 (0x51…0xFF) reserved | ||||||||
8 | 8 | DB2.7… DB2.0 | Temperature from RCU | TMP | Room temperature from room control unit (RCU) | 0..160dec | 0…+40 | °C |
161…254 (0xA1…0xFE) reserved | ||||||||
16 | 1 | DB1.7 | Reference Run (Maintenance) | REF | Execute reference-run | 0: Normal operation 1: Reference-run and Maintenance Interval | ||
17 | 3 | DB1.6…DB1.4 | RF Communication interval | RFC | Radio duty cycle selection. Find additional information in the Appendix | 0b000: AUTO (default) 2, 5 or 10 minutes | ||
20 | 1 | DB1.3 | Summer Bit | SB | Initiate summer mode (reduced communication) | 0: Normal operation 1: Summer mode with | ||
21 | 1 | DB1.2 | Set Point Selection | SPS | Set point selection for DB3 | 0: Valve position mode (0…100%) | ||
22 | 1 | DB1.1 | Temperature Selection | TSL | Temperature requested from the actuator (DB1.7…DB1.0, DIR-1, TMP) | 0: Request ambient 1: Request feed | ||
23 | 1 | DB1.0 | Standby | SBY | Enter standby mode, refer to Appendix | 0: Normal operation 1: Standby | ||
24 | 4 | DB0.7… DB0.4 | Not used |
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| Set to 0 |
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28 | 1 | DB0.3 | LRN Bit | LRNB | LRN Bit | 0: Teach-in telegram | ||
29 | 3 | DB0.2… DB0.0 | Not used |
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| Set to 0 |
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