FPΣ +

S-LINK unit

FPG-SL

16

FP

S (Sigma) S-Link expansion unit

Flexible wire-saving link system S-Link

Features

Up to four S-Link units can be attached to one FP



S (Sigma) CPU.

Each unit supports up to 128 I/O signals over a pair of wires up to a distance of 200m



(400m when a booster is used).

The combination of input and output point quantities (a total of 128 points max.) can be set by the rotary



switch in increments of 32 points.

The transmission line connection is realized via a T-branch multi-drop wiring with hook-up connectors.



Adding devices is rendered easy and maintenance is easy.

FP

S (Sigma) + S-Link unit

Features

The four-wire cable (two signal wires and two power wires) enables efficient



wiring, and the T-branch wirinig enables a flexible connection layout.

About 60 types of S-Link input/output devices can be



connected to this unit, enabling it to meet diverse I/O

needs. In addition, the high transmission voltage

(24VDC) and the wide clock width (35µs) provide high

noise immunity. Flexible and reliable wiring is available,

reducing the wiring work.

Features

The control unit automatically recognizes I/O allocation in accordance with the attached S-Link unit



position, making the S-Link unit as easy to use as a common expansion I/O device.

If the main wire is broken and an input/output device cannot be recognized, then the S-Link unit displays



the device number. This function significantly reduces the time required for troubleshooting during an

equipment startup check or recovering from on-site problems.

Specifications

35 s

Transmission method

Bi-directional time-divided multiple signal transmission

Synchronization

Bit synchronization, frame synchronization

Transmission protocol

S-Link protocol

Transmission line

Exclusive flat cable or cabtyre cable

Transmission speed

28.5kbps

Transmission distance *¹

Main signal wires: Extensible up to 200m (400m when a booster is used)

Connection method

T-branch multi-drop wiring or multi-drop wiring

Number of I/O points

128 points max. (adjustable in encrements of 32 I/O points)

*1 For boosters, see the S-Link catalog and manual issued by SUNX Limited.

09/2008