# STS 14.5 and CPU 420 **URL:** \ **Category:** General Discussion\ **Created:** [March 17, 2025, 10:16am UTC](https://forum.inductiveautomation.com/t/sts-14-5-and-cpu-420/103772 "2025-03-17T10:16:56Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![ETS](https://avatars.discourse-cdn.com/v4/letter/e/919ad9/32.png) [@ETS](https://forum.inductiveautomation.com/u/ETS)\ **Post date:** [March 17, 2025, 10:16am UTC](https://forum.inductiveautomation.com/t/sts-14-5-and-cpu-420/103772/1 "2025-03-17T10:16:56Z")
How to add Moscad CPU Series 420 to STS 14.5 version. What is the pinout on the cable? It is a MOTOROLA MOSCAD FLN2414B CPU SERIES 420 device. This CPU needs to be connected to a computer that has Motorola System Tools Suite 14.50 installed. I made the cable according to the instructions in the manual, but when adding it to the program I got an error. "The RTU type does not support this operation" ---
**Author:** ![Transistor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/transistor/32/3380_2.png) [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\ **Post date:** [March 17, 2025, 10:23am UTC](https://forum.inductiveautomation.com/t/sts-14-5-and-cpu-420/103772/2 "2025-03-17T10:23:03Z")
Please edit your post to include datasheet links to the user manuals / datasheets for each device and explain what exactly is being connected. ---
**Author:** ![ETS](https://avatars.discourse-cdn.com/v4/letter/e/919ad9/32.png) [@ETS](https://forum.inductiveautomation.com/u/ETS)\ **Post date:** [March 17, 2025, 10:58am UTC](https://forum.inductiveautomation.com/t/sts-14-5-and-cpu-420/103772/3 "2025-03-17T10:58:12Z")
I added, is that okay? ---
**Author:** ![Transistor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/transistor/32/3380_2.png) [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\ **Post date:** [March 17, 2025, 11:02am UTC](https://forum.inductiveautomation.com/t/sts-14-5-and-cpu-420/103772/4 "2025-03-17T11:02:03Z")
Where are the hyperlinks? > I made the cable according to the instructions in the manual, ... What page number in which manual? > ... but when adding it to the program I got an error. How do you add a cable to a program? Be precise in your writing. ---
**Author:** ![ETS](https://avatars.discourse-cdn.com/v4/letter/e/919ad9/32.png) [@ETS](https://forum.inductiveautomation.com/u/ETS)\ **Post date:** [March 17, 2025, 11:09am UTC](https://forum.inductiveautomation.com/t/sts-14-5-and-cpu-420/103772/5 "2025-03-17T11:09:32Z")
[https://fccid.io/AZ489FT4840/User-Manual/users-and-installation-guide-176729](https://fccid.io/AZ489FT4840/User-Manual/users-and-installation-guide-176729) page 36 ![TimePhoto_20250317_121032](https://us1.discourse-cdn.com/inductiveautomation/original/3X/e/0/e07aeba147e409ea2efb797e4f2cf78e7d0aa4fc.jpeg) ---
**Author:** ![Transistor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/transistor/32/3380_2.png) [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\ **Post date:** [March 17, 2025, 1:25pm UTC](https://forum.inductiveautomation.com/t/sts-14-5-and-cpu-420/103772/6 "2025-03-17T13:25:42Z")
> [@ETS](#): > > "The RTU type does not support this operation" This is a configuration error. It has nothing to do with your cable. It also has nothing to do with Inductive Automation or Ignition. Why are you asking here? ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [March 17, 2025, 1:38pm UTC](https://forum.inductiveautomation.com/t/sts-14-5-and-cpu-420/103772/7 "2025-03-17T13:38:12Z")
> [@Transistor](#): > > Why are you asking here? It is the general discussion category, so it is within the rules. I think this forum has gained a reputation for actually producing answers, and the OP is desperate. ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [March 17, 2025, 2:17pm UTC](https://forum.inductiveautomation.com/t/sts-14-5-and-cpu-420/103772/8 "2025-03-17T14:17:03Z")
I’d personally like to see the General Discussion area grow a little beyond just Ignition and into a general industry resource… we’ve got a good collection of minds here and the only decent/modern forum software… ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [March 17, 2025, 2:19pm UTC](https://forum.inductiveautomation.com/t/sts-14-5-and-cpu-420/103772/9 "2025-03-17T14:19:53Z")
> [@Kevin.Herron](#): > > grow a little beyond just Ignition Concur. > [@Kevin.Herron](#): > > decent/modern forum software… And professional moderation. ---
**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\ **Post date:** [March 17, 2025, 2:51pm UTC](https://forum.inductiveautomation.com/t/sts-14-5-and-cpu-420/103772/10 "2025-03-17T14:51:59Z")
> [@ETS](#): > > How to add Moscad CPU Series 420 to STS 14.5 version. After a bit of Google-fu, I can't find anything that suggests that STS supports MOSCAD, which would use the MOSCAD Family of tools. ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/b/2/b217b03daa83f8647844916dc6621162e85686d6.png)