Posted 4 Aug 2020 (edited) I'm not really familiar with Omron PLC's, but i was looking thru the data sheet for the NX-DA2203 and it says it gets its power from the NX bus. but the wiring example at the bottom shows that an additional power supply is needed? do i have to use the additional power supply unit' or is it powered from the PLC bus? website: Omron NX-DA2203 data sheet: http://www.ia.omron.com/data_pdf/cat/nx-ad_da_ds_e_3_2_csm1057422.pdf?id=3187 Edited 4 Aug 2020 by Eric Miller Share this post Link to post Share on other sites
Posted 5 Aug 2020 The NX-EIC and NX-ECC couplers provide this power across the bus, it wires into the coupler itself. The NX102 and NX1P2 do not, so a power supply module would be required. 1 person likes this Share this post Link to post Share on other sites
Posted 10 Aug 2020 great info, thanks! any idea where this is documented in the Omron literature? i got their current PLC layout and there's already a power module on it so i think i will be ok to add these 2 more slices (current PLC layout) NX1P2-9024-DT1 NX-PF0730 NX-AD2603 NX-EC0142 (adding these 2 slices) NX-DA2203 NX-EC0112 Share this post Link to post Share on other sites
Posted 10 Aug 2020 The manual for the PLC mentions it under expansion options, not sure of the page. The manuals for the NX modules indicate which ones do or do not need a power supply... 1 person likes this Share this post Link to post Share on other sites