diff options
Diffstat (limited to 'radiator-plc/DOCS/valve_wiring.txt')
| -rw-r--r-- | radiator-plc/DOCS/valve_wiring.txt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/radiator-plc/DOCS/valve_wiring.txt b/radiator-plc/DOCS/valve_wiring.txt new file mode 100644 index 0000000..882aa63 --- /dev/null +++ b/radiator-plc/DOCS/valve_wiring.txt @@ -0,0 +1,15 @@ +Pin numbers on RJ45 and DB-9 are the same + +1 or/w 1 wire bus +2 or GND +3 g/w uSwitch (short to gound to indicate valve open) +4 bl 5V +5 bl/w 24V +6 g uSwitch +7 br/w coil - plc pulls to ground to open valve +8 br coil + +(doubling up is to make wirign in plc neater) + + + |