From 99a8f17339566af84bd217bcf85cec1d58be5230 Mon Sep 17 00:00:00 2001 From: Grzegorz Date: Tue, 21 Apr 2026 09:50:25 +0200 Subject: [PATCH 1/3] Update 0x09-get-run-state.md --- .../0x62-get-response/0x09-get-run-state.md | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/docs/developer/it-protocol/0x62-get-response/0x09-get-run-state.md b/docs/developer/it-protocol/0x62-get-response/0x09-get-run-state.md index 48983f3..d79dabd 100644 --- a/docs/developer/it-protocol/0x62-get-response/0x09-get-run-state.md +++ b/docs/developer/it-protocol/0x62-get-response/0x09-get-run-state.md @@ -29,9 +29,10 @@ the MSZ-GE##VA and MSZ-FD##VA units, but otherse may be affected. | Bit | Purpose | Supported by mUART | Notes | |------|-----------|--------------------|--------------------------------------------------------------------------------------------| +| 0x00 | Normal | | The system is in normal state. | | 0x01 | Filter | | The filter needs to be serviced. | | 0x02 | Defrost | | The outdoor unit is in a defrost cycle. | -| 0x04 | HotAdjust | | The system is preheating for a HEAT call. | +| 0x04 | Preheat | | The system is preheating for a HEAT call. | | 0x08 | Standby | | The unit is in standby mode (another unit with priority is requesting a conflicting mode). | ## Actual Fan Speeds @@ -66,10 +67,10 @@ this time. | Value | Name | |--------|---------------------| -| 0x00 | N/A | -| 0x01 | Cool | -| 0x02 | Heat | -| 0x03 | "Leader" Mode (???) | -| 0x40 | ??? | +| 0x00 | Direct | +| 0x01 | Auto Fan | +| 0x02 | Auto Heat | +| 0x03 | Auto Cool | +| 0x40 | Auto Leader | | 0x41 | ??? | -| 0x42 | ??? | \ No newline at end of file +| 0x42 | ??? | From 97e9be891207bddf9fc56b787278a486bc1b395e Mon Sep 17 00:00:00 2001 From: Grzegorz Date: Tue, 21 Apr 2026 10:21:58 +0200 Subject: [PATCH 2/3] Enhance run state table with descriptive notes Updated the table to include notes for each value, providing additional context about the system modes. --- .../0x62-get-response/0x09-get-run-state.md | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/docs/developer/it-protocol/0x62-get-response/0x09-get-run-state.md b/docs/developer/it-protocol/0x62-get-response/0x09-get-run-state.md index d79dabd..cae65cb 100644 --- a/docs/developer/it-protocol/0x62-get-response/0x09-get-run-state.md +++ b/docs/developer/it-protocol/0x62-get-response/0x09-get-run-state.md @@ -65,12 +65,12 @@ is in. That is, if the operation mode is set to auto, this field will denote wha This byte may additionally contain extra bits (namely, `0x40`), though the meaning of this bit is currently unknown at this time. -| Value | Name | -|--------|---------------------| -| 0x00 | Direct | -| 0x01 | Auto Fan | -| 0x02 | Auto Heat | -| 0x03 | Auto Cool | -| 0x40 | Auto Leader | -| 0x41 | ??? | -| 0x42 | ??? | +| Value | Name | Notes | +|--------|---------------------|--------------------------------------------------------------------------------------------| +| 0x00 | Direct | The system is set direct to Cool, Heat or Fan mode | +| 0x01 | Auto Fan | The system is set to Auto and current mode is Fan. | +| 0x02 | Auto Heat | The system is set to Auto and current mode is Heat. | +| 0x03 | Auto Cool | The system is set to Auto and current mode is Cool. | +| 0x40 | Auto Leader | The multisplit system is set to Auto and the device operate as a Leader. | +| 0x41 | ??? | Unknown. | +| 0x42 | ??? | Unknown. | From bce6e59641b2209e885c25774e01c08af2b7801a Mon Sep 17 00:00:00 2001 From: Sam <467704+samphonic@users.noreply.github.com> Date: Tue, 21 Apr 2026 10:13:06 -0700 Subject: [PATCH 3/3] Clarify "HotAdjust" is Mitsubishi terminology --- .../it-protocol/0x62-get-response/0x09-get-run-state.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/developer/it-protocol/0x62-get-response/0x09-get-run-state.md b/docs/developer/it-protocol/0x62-get-response/0x09-get-run-state.md index cae65cb..8138186 100644 --- a/docs/developer/it-protocol/0x62-get-response/0x09-get-run-state.md +++ b/docs/developer/it-protocol/0x62-get-response/0x09-get-run-state.md @@ -32,7 +32,7 @@ the MSZ-GE##VA and MSZ-FD##VA units, but otherse may be affected. | 0x00 | Normal | | The system is in normal state. | | 0x01 | Filter | | The filter needs to be serviced. | | 0x02 | Defrost | | The outdoor unit is in a defrost cycle. | -| 0x04 | Preheat | | The system is preheating for a HEAT call. | +| 0x04 | Preheat | | The system is preheating for a HEAT call. ("HotAdjust" in Mitsubishi docs) | | 0x08 | Standby | | The unit is in standby mode (another unit with priority is requesting a conflicting mode). | ## Actual Fan Speeds