ABB NDSM03 Digital slave module

Product introduction

Module ready: XnF Indicates if the module is ready for operation. (a) Turns on automatically when the module becomes ready for operation Used as an interlock signal when a sequence program is used to make access to the master/local module. (b) Turns off when one of the following conditions occur: • There is an error in the module switch settings. • The module reset request signal (Yn4) is turned on. • The module error signal (Xn0) is turned on. Module ready (XnF) Module error (Xn0) Module reset request (Yn4) Refresh command: Yn0 Indicates if the content of remote output RY (address 160H to 1DFH) in the buffer memory is effective or not. Same meaning for local stations. For remote input RX and remote register RWr/RWw except remote output RY, refresh is continued independently of this signal. OFF : Not effective (Sends all-off data.) ON : Effective (Sends data in "remote output (address 160H to 1DFH)" in the buffer memory.)

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