#VIJEO LOOK SERIAL SERIAL#

The NET-AIC's ports are electrically isolated from each other & so it provides protection against ground loops & voltage differences between the devices connected to it. However, Ch2 on the ML1400 is a non-isolated port. The ML1400 can connect directly to the HMI, if you don't have a NET-AIC. This is important! The diagram shows the D-SUB9 plug wiring intended for a NET-AIC. In this diagram they do not show pin numbers on the target side as it relates to many different HMI models, which differ in port types & pinout numbering.įor reference, write '8' beside 'GND', '2' beside 'SD(TXD)' & '1' beside RD(RXD). Ignore this link for STO/STU's, as it is only relevant to higher model Magelis HMI that have D-SUB9 COM ports. Notice the CS/RS link on the target side & the note below. So from this we use pin 1-RD(RXD), pin 2-SD(TXD) & pin 8-GND. The top pinout is indeed RS-232C, but the bottom pinout is RS-422/485, it's a typo error. of Schneiders 'Allen-Bradley DH485 Duplex Driver' doc (attached below) shows the wiring options for COM1(RJ45) as RS-232C or RS-232C. Initially I used DH485 for that setup and made my own cable from the driver help file doc.ĭH485 Cable: (ML1400 Ch2 D-SUB9>HMISTO/STU COM1 RJ45)

#VIJEO LOOK SERIAL SERIAL#

I had originally tried the ML1400 with the lesser, serial only, HMISTO511. It's fairly comprehensive, so if someone feels this should be a 'How To' posted somewhere else, please move it or ask me to post it seperately instead. It's not difficult, if you follow Schneiders driver help docs carefully, but some may get confused between the many wiring options they give as to which one to use. This is to assist others who may want, or have to use either DH485 or DF1 for ML1400 CH2(D-SUB9) to COM1(RJ45) on a HMISTO/STU & need to make a cable. Having read the thread, I felt it needed closure. I too use ML1400's with HMISTU655's & HMISTU855's, nice HMI. Wiktor, I'm glad you realised that Ethernet is the best way to communicate between these 2 devices and are now up & running.

Vijeo look serial