Can I use ESTUN servo drivers EDB-15APA with LinuxCNC?

I got classical CNC router with XYZ axis, it has ESTUN servo drivers EDB-15APA controlling by some ABB controller and it all work from some windows programm.
I never have before CNC machine with servo's and do not have experience to configure it and which control protocol choose or some else, I just now that there are has some OpenCan EtherCat and thats all.
I want reconfiguring that servo drivers to use it with our LinuxCNC, and I want ask it is possible or not and how configure it may be it has some example to do it for my case.
I find manual to it servo driver I think it must help us to understand is it possible or not. - MANUAL for EDB series

I read it and see couple interesting things for me:)
in first atachment - screenshoot by 13 page


it can be controlled by position reference through PULS (25 and 24 pin) , SIGN (26 and 27 pin) and PL1 PL2 (23 and 28 pin)
It sounds like full analog with our classical style controlling by step drivers - STEP DIR ENABLE
and after when I saw second attachment- screenshoot by 36 page

I want belive that is true and we can controll it servo by classical method to give them pulse from step dir
please help me understand am I right or not
or may be you now some other way?
Thank you.

If the drives can interface via EtherCAT you should be able to control the with
LinuxCNC +PC with no additional hardware.

If they do not have a EtherCAT interface you can chose step/dir position mode
or analog velocity mode. Both would typically require some additional
interface hardware (the step/dir case is simpler though)

Can you help me understand where in manual described what control mode we can use?
No words about step dir? may be it has it control mode but described it by another words and I can not be sure.

They call step/dir "pulse/sign" (page 13)

PCW wrote:

They call step/dir "pulse/sign" (page 13)

If I'm right understand Position control mode it is what I need - it is same that step/dir control mode, isn't it?
and I found another couple control modes - it is Speed control mode and Torque control mode
and I want now LinuxCNC can work with it modes or not, I ask it because I want insert in old system some releys block to switch wire from old windows system to new LinuxCNC and back, and I want that control mode will be same in both case.