Allen-Bradley 1747-L551 B 4
- Fabrikant: Allen-Bradley
- Model: 1747-L551
Mpn: 1747-OS501 C 4 | Controller platform: SLC 500 | Country/region of manufacture: United States
$1,444 USDRathdowney, Ierland1747-L542 e SLC500 processor unit
- Fabrikant: Allen-Bradley
- Model: 1747-L542
$517 USDWaddinxveen, Nederland1747-L551 e Allen-Bradley SLC500 processor
- Fabrikant: Allen-Bradley
- Model: 1747-L551
$1,033 USDWaddinxveen, Nederland