Keithley 617 Error using GPIB vi's and VISA

 Hi,

I have few problems while trying to talk to this old piece of equipment.

First, I want to mention that I am familliar with this post over here: 

https://forums.ni.com/t5/Instrument-Control-GPIB-Serial/Communication-with-a-Keithley-617/m-p/3610793#M74493

The idea is that I want of course communicate with a device. I wanted to do this by GPIB vi's. What I try to accomplish is sending GPIB bus specific commands like SDC, REN LLOetc. to device, and later sending some Device Specific Commands to K617(to setup device properly like in the link above (commands like U0X, U1X, F1X, etc.)

Question at this moment:

1. Is it possible to send those commands(REN SDC LLO etc) using VISA vis so I dont need to use GPIB vis? 

First problem occured when I try to use any of GPIB vis. 

So, what is my setup? I installed most recent version of NI 488.2 drivers (18.5) and also most recent VISA drivers (18.5)

I am using Agilent/Keysight 82357B USB/GPIB Interface with Keysight Connection Expert IO Suit installed.

Next problem is that if I want to send command like U0X to the device using VISA then it works but under specific condition. I need to explicitly type full resouce name in VISA control to the device if i want to make it work. But if i want to chose interface from drop down  menu it doesnt work. Simillar to the topic over here: https://forums.ni.com/t5/LabVIEW/The-pop-up-menu-of-VISA-resource-name-comes-nothing-except/td-p/3351839/page/3 . Even if I type allias name for the VISA resource name in  NI MAX it throws an error posted below. Here are some pics:

Sending commands like U0X in NI MAX works, and in Keysight Connection Expert also works. But I cannot do this using GPIB and VISA if I do not explicitly tell the resource name. Because if i do then i receive response with success from device. So, are any solutions for those errors? I dont know what to do with them (tried to solve the problem all day). I can use VISA but is it possible to send those SDC, DCL LLO commands? What about those errors then?

Keithley 617 Datasheet:

https://www.univie.ac.at/photovoltaik/umwelt/ws2015/K617_original.pdf

Installed driver for K617:

http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=E3B19B3E94A2659CE034080020E74861

What I tried:

- Enabling Tulip passport in NI MAX

- Changing default VISA implementation in NI MAX to Agilent VISA or NI's VISA.

- Entering Keysight Connection Expert and chosing option for 488 gpib card device. Described here:

https://www.keysight.com/main/editorial.jspx?cc=US&lc=eng&ckey=2457831&nid=-33257.0.00&id=2457831

Thanks in advance.