Yokogawa ALF111-S01 is a Foundation Fieldbus H1 communication module that functions as a Link Active Scheduler (LAS) to exchange data with Foundation fieldbus (H1) compliant devices.

Here are some of the technical specifications of the Yokogawa ALF111-S01:

• Power supply: 24 VDC ±10%
• Power consumption: 4.5 W (max)
• Communication speed: 31.25 kbit/s
• Number of H1 segments: 1
• Number of FOUNDATION fieldbus devices: 32 (max)
• Dimensions: 88 x 58 x 23 mm (W x H x D)
• Weight: 150 g

The ALF111-S01 is also compliant with the following standards:

• IEC 61158-2 (Foundation Fieldbus H1)
• EN 50173 (EMC)
• UL 508 (Industrial Control Equipment)