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FA-M3 Hardware Manual - Yokogawa

FA-M3 Hardware Manual - Yokogawa

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• Example of Increasing the Number of I/O Points Using Fiber-optic<strong>FA</strong>-bus Type 2 ModulesA1-3You can install fiber-optic <strong>FA</strong>-bus type 2 modules in both main and subunits and connectthem with fiber-optic cables. This enables distributed arrangement of remote I/O points,increase in the number of I/O points, and control of I/O modules via high-speed, noiseimmunecommunication.CPU moduleFiber-optic <strong>FA</strong>-bus type 2 module<strong>FA</strong>-<strong>M3</strong>main unitPower supplymoduleExample of I/O configuration (32 points)224 points(384 points without expansion module)add-on sequence CPU modules (up to three)Subunit 1Subunit 2Subunit 3* denotes a fiber-optic <strong>FA</strong>-bus type 2 module.Subunit 4Subunit 5Subunit 6Subunit 7Power supplymodulePower supplymodulePower supplymodulePower supplymodulePower supplymodulePower supplymodulePower supplymoduleThe maximum length of each fiber-optic cable between units is 500m.<strong>FA</strong>010103.VSDFigure A1.4 Increasing the Number of I/O Points Using Fiber-optic <strong>FA</strong>-bus Type 2 ModulesThe maximum number of subunits that can be connected is 7.Subunit numbers are determined depending on the setting of the rotary switch on thefiber-optic <strong>FA</strong>-bus type 2 module mounted to a subunit.IM 34M06C11-01E 23nd Edition : Oct. 01, 2013-00

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