M1: Difference between revisions

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{| class='wikitable'
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! TD !! Address !! bit !! Meaning when '1' !! Observed by
! TD !! Address !! bit !! Meaning when '1'
|-
|-
| M1 || 00 || 0 || Not seen. || Phil Wieland
| M1 || 00 || 0 || LL1577 (Position light ground signal.) off.
|-
|-
| M1 || 00 || 1 || LL3572 off. || Phil Wieland
| M1 || 00 || 1 || LL3572 off.
|-
|-
| M1 || 00 || 2 || LL3573 off. || Phil Wieland
| M1 || 00 || 2 || LL3573 off.
|-
|-
| M1 || 00 || 3 || LL3574 off. || Phil Wieland
| M1 || 00 || 3 || LL3574 off.
|-
|-
| M1 || 00 || 4 || LL3575 off. || Phil Wieland
| M1 || 00 || 4 || LL3575 off.
|-
|-
| M1 || 00 || 5 || LL3576 off. || Phil Wieland
| M1 || 00 || 5 || LL3576 off.
|-
|-
| M1 || 00 || 6 || LL3577 off. || Phil Wieland
| M1 || 00 || 6 || LL3577 off.
|-
|-
| M1 || 00 || 7 || LL3578 off. || Phil Wieland
| M1 || 00 || 7 || LL3578 off.
|-
|-
| M1 || 01 || 0 || LL3579 off. || Phil Wieland
| M1 || 01 || 0 || LL3579 off.
|-
|-
| M1 || 01 || 1 || LL3580 off. || Phil Wieland
| M1 || 01 || 1 || LL3580 off.
|-
|-
| M1 || 01 || 2 || LL3581 off. || Phil Wieland
| M1 || 01 || 2 || LL3581 off.
|-
|-
| M1 || 01 || 3 || LL3582 off. || Phil Wieland
| M1 || 01 || 3 || LL3582 off.
|-
|-
| M1 || 01 || 4 || LL3584 off. || Phil Wieland
| M1 || 01 || 4 || LL3584 off.
|-
|-
| M1 || 01 || 5 || LL3585 off. || Phil Wieland
| M1 || 01 || 5 || LL3585 off.
|-
|-
| M1 || 01 || 6 || LL3586 off. || Phil Wieland
| M1 || 01 || 6 || LL3586 off.
|-
|-
| M1 || 01 || 7 || LL3587 off. || Phil Wieland
| M1 || 01 || 7 || LL3587 off.
|-
|-
| M1 || 02 || 0 || LL3590 off. || Phil Wieland
| M1 || 02 || 0 || LL3590 off.
|-
|-
| M1 || 02 || 1 || LL3591 off. || Phil Wieland
| M1 || 02 || 1 || LL3591 off.
|-
|-
| M1 || 02 || 2 || LL3592 off. || Phil Wieland
| M1 || 02 || 2 || LL3592 off.
|-
|-
| M1 || 02 || 3 || LL3593 off. || Phil Wieland
| M1 || 02 || 3 || LL3593 off.
|-
|-
| M1 || 02 || 4 || LL3739 off. || Phil Wieland
| M1 || 02 || 4 || LL3739 off.
|-
|-
| M1 || 02 || 5 || LL3745 off. || Phil Wieland
| M1 || 02 || 5 || LL3745 off.
|-
|-
| M1 || 02 || 6 || LL3746 off. || Phil Wieland
| M1 || 02 || 6 || LL3746 off.
|-
|-
| M1 || 02 || 7 || LL3749 off. || Phil Wieland
| M1 || 02 || 7 || LL3749 off.
|-
|-
| M1 || 03 || 0 || LL3750 off. || Phil Wieland
| M1 || 03 || 0 || LL3750 off.
|-
|-
| M1 || 03 || 1 || LL3754 off. || Phil Wieland
| M1 || 03 || 1 || LL3754 off.
|-
|-
| M1 || 03 || 2 || LL3755 off. || Phil Wieland
| M1 || 03 || 2 || LL3755 off.
|-
|-
| M1 || 03 || 3 || LL5579 off. || Phil Wieland
| M1 || 03 || 3 || LL5579 off.
|-
|-
| M1 || 03 || 4 || LL5583 off. || Phil Wieland
| M1 || 03 || 4 || LL5583 off.
|-
|-
| M1 || 03 || 5 || LL9588 off. || Phil Wieland
| M1 || 03 || 5 || LL9588 off.
|-
|-
| M1 || 03 || 6 || Not seen. || Phil Wieland
| M1 || 03 || 6 || Unused.
|-
|-
| M1 || 03 || 7 || Not seen. || Phil Wieland
| M1 || 03 || 7 || LL5580 off.
|-
|-
| M1 || 04 || 0 || Not seen. || Phil Wieland
| M1 || 04 || 0 || LL5582 off.
|-
|-
| M1 || 04 || 1 || Not seen. || Phil Wieland
| M1 || 04 || 1 || Unused.
|-
|-
| M1 || 04 || 2 || Not seen. || Phil Wieland
| M1 || 04 || 2 || Unused.
|-
|-
| M1 || 04 || 3 || Not seen. || Phil Wieland
| M1 || 04 || 3 || Unused.
|-
|-
| M1 || 04 || 4 || Not seen. || Phil Wieland
| M1 || 04 || 4 || Unused.
|-
|-
| M1 || 04 || 5 || Not seen. || Phil Wieland
| M1 || 04 || 5 || Unused.
|-
|-
| M1 || 04 || 6 || Not seen. || Phil Wieland
| M1 || 04 || 6 || Unused.
|-
|-
| M1 || 04 || 7 || Not seen. || Phil Wieland
| M1 || 04 || 7 || Unused.
|-
|-
| M1 || 05 || 0 || Unidentified.  Seen to change.  Stays at 1 during normal ops. || Phil Wieland
| M1 || 05 || 0 || Route set LL3572 to WN589.
|-
|-
| M1 || 05 || 1 || Unidentified.  Seen to change.  Stays at 1 during normal ops. || Phil Wieland
| M1 || 05 || 1 || Route set LL3573 to LL5375.
|-
|-
| M1 || 05 || 2 || Route set LL3585 to LL3587 Down Chat Moss to Huyton P1. || Phil Wieland
| M1 || 05 || 2 || Route set LL3585 to LL3587 Down Chat Moss to Huyton P1.
|-
|-
| M1 || 05 || 3 || Route set LL3585 to LL5579 Down Chat Moss to Huyton P2. || Phil Wieland
| M1 || 05 || 3 || Route set LL3585 to LL5579 Down Chat Moss to Huyton P2.
|-
|-
| M1 || 05 || 4 || Route set LL3586 to LL3754 Huyton P3 to Up St Helens. || Phil Wieland
| M1 || 05 || 4 || Unused.
|-
|-
| M1 || 05 || 5 || Route set LL3586 to LL3587 Huyton P3 to Up Chat Moss. || Phil Wieland
| M1 || 05 || 5 || Unused.
|-
|-
| M1 || 05 || 6 || Unidentified. Seen to change.  Stays at 1 during normal ops. || Phil Wieland
| M1 || 05 || 6 || Unused.
|-
|-
| M1 || 05 || 7 || Route set LL3591 to LL3593 Roby P1 towards Liverpool || Phil Wieland
| M1 || 05 || 7 || Route set LL3591 to LL3593 Roby P1 towards Liverpool.
|-
|-
| M1 || 06 || 0 || Unidentified. Seems to relate to signals 20 and 22 but it's not LL3590BR because I have seen it off when 3590 is on.  || Phil Wieland
| M1 || 06 || 0 || Unused.
|-
|-
| M1 || 06 || 1 || Route set LL3755 to LL5579 Down St Helens to Huyton P2 || Phil Wieland
| M1 || 06 || 1 || Route set LL3755 to LL5579 Down St Helens to Huyton P2.
|-
|-
| M1 || 06 || 2 || Route set LL3755 to LL9591 Down St Helens to Huyton P3. || Phil Wieland
| M1 || 06 || 2 || Route set LL3755 to LL9593 Down St Helens to Huyton P4.
|-
|-
| M1 || 06 || 3 || Route set LL5583 to LL3593 Roby P2 towards Liverpool || Phil Wieland
| M1 || 06 || 3 || Route set LL5583 to LL3593 Roby P2 towards Liverpool.
|-
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| M1 || 06 || 4 || Route set LL9588 to LL3584 Huyton P2 to Up Chat Moss.|| Phil Wieland
| M1 || 06 || 4 || Route set LL9588 to LL3584 Huyton P2 to Up Chat Moss.
|-
|-
| M1 || 06 || 5 || Not seen. || Phil Wieland
| M1 || 06 || 5 || Route set LL3586 to LL3584 Huyton P3 to Up Chat Moss.
|-
|-
| M1 || 06 || 6 || Not seen. || Phil Wieland
| M1 || 06 || 6 || Route set LL3592 to LL5582 Up Chat Moss to Roby P4.
|-
|-
| M1 || 06 || 7 || Not seen. || Phil Wieland
| M1 || 06 || 7 || Route set LL3592 to LL3590 Up Chat Moss to Roby P3.
|-
|-
| M1 || 07 || 0 || Not seen. || Phil Wieland
| M1 || 07 || 0 || Route set LL5580 to LL3574 Huyton P4 to Up St Helens.
|-
|-
| M1 || 07 || 1 || Not seen. || Phil Wieland
| M1 || 07 || 1 || Route set LL5580 to LL3584 Huyton P4 to Up Chat Moss.
|-
|-
| M1 || 07 || 2 || Not seen. || Phil Wieland
| M1 || 07 || 2 || Route set LL5582 to LL5580 Roby P4 to Huyton P4.
|-
|-
| M1 || 07 || 3 || Not seen. || Phil Wieland
| M1 || 07 || 3 || Unused.
|-
|-
| M1 || 07 || 4 || Not seen. || Phil Wieland
| M1 || 07 || 4 || Unused.
|-
|-
| M1 || 07 || 5 || Not seen. || Phil Wieland
| M1 || 07 || 5 || Unused.
|-
|-
| M1 || 07 || 6 || Not seen. || Phil Wieland
| M1 || 07 || 6 || Unused.
|-
|-
| M1 || 07 || 7 || Not seen. || Phil Wieland
| M1 || 07 || 7 || Unused.
|}
|}


Note - In the absence of confirmation of how signalling engineers number the bits, this list uses bit 0 for the LSB to bit 7 for the MSB of each byte.
Note - In the absence of confirmation of how signalling engineers number the bits, this list uses bit 0 for the LSB to bit 7 for the MSB of each byte.


"Not seen" indicates a bit which has always been 0.
"Unused" indicates a bit which has always been 0.


There is at least one signal and one route setting which have not been used since the signalling was commissioned and so are missing from the listing.
For a signal "Off" means any proceed indication.
 
{{Navtable-DataFeeds}}
 
[[Category:Train Describer Data]]

Latest revision as of 19:13, 2 November 2019

TD Address bit Meaning when '1'
M1 00 0 LL1577 (Position light ground signal.) off.
M1 00 1 LL3572 off.
M1 00 2 LL3573 off.
M1 00 3 LL3574 off.
M1 00 4 LL3575 off.
M1 00 5 LL3576 off.
M1 00 6 LL3577 off.
M1 00 7 LL3578 off.
M1 01 0 LL3579 off.
M1 01 1 LL3580 off.
M1 01 2 LL3581 off.
M1 01 3 LL3582 off.
M1 01 4 LL3584 off.
M1 01 5 LL3585 off.
M1 01 6 LL3586 off.
M1 01 7 LL3587 off.
M1 02 0 LL3590 off.
M1 02 1 LL3591 off.
M1 02 2 LL3592 off.
M1 02 3 LL3593 off.
M1 02 4 LL3739 off.
M1 02 5 LL3745 off.
M1 02 6 LL3746 off.
M1 02 7 LL3749 off.
M1 03 0 LL3750 off.
M1 03 1 LL3754 off.
M1 03 2 LL3755 off.
M1 03 3 LL5579 off.
M1 03 4 LL5583 off.
M1 03 5 LL9588 off.
M1 03 6 Unused.
M1 03 7 LL5580 off.
M1 04 0 LL5582 off.
M1 04 1 Unused.
M1 04 2 Unused.
M1 04 3 Unused.
M1 04 4 Unused.
M1 04 5 Unused.
M1 04 6 Unused.
M1 04 7 Unused.
M1 05 0 Route set LL3572 to WN589.
M1 05 1 Route set LL3573 to LL5375.
M1 05 2 Route set LL3585 to LL3587 Down Chat Moss to Huyton P1.
M1 05 3 Route set LL3585 to LL5579 Down Chat Moss to Huyton P2.
M1 05 4 Unused.
M1 05 5 Unused.
M1 05 6 Unused.
M1 05 7 Route set LL3591 to LL3593 Roby P1 towards Liverpool.
M1 06 0 Unused.
M1 06 1 Route set LL3755 to LL5579 Down St Helens to Huyton P2.
M1 06 2 Route set LL3755 to LL9593 Down St Helens to Huyton P4.
M1 06 3 Route set LL5583 to LL3593 Roby P2 towards Liverpool.
M1 06 4 Route set LL9588 to LL3584 Huyton P2 to Up Chat Moss.
M1 06 5 Route set LL3586 to LL3584 Huyton P3 to Up Chat Moss.
M1 06 6 Route set LL3592 to LL5582 Up Chat Moss to Roby P4.
M1 06 7 Route set LL3592 to LL3590 Up Chat Moss to Roby P3.
M1 07 0 Route set LL5580 to LL3574 Huyton P4 to Up St Helens.
M1 07 1 Route set LL5580 to LL3584 Huyton P4 to Up Chat Moss.
M1 07 2 Route set LL5582 to LL5580 Roby P4 to Huyton P4.
M1 07 3 Unused.
M1 07 4 Unused.
M1 07 5 Unused.
M1 07 6 Unused.
M1 07 7 Unused.

Note - In the absence of confirmation of how signalling engineers number the bits, this list uses bit 0 for the LSB to bit 7 for the MSB of each byte.

"Unused" indicates a bit which has always been 0.

For a signal "Off" means any proceed indication.


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