Siemens S7 Profibus to modbus RTU gateway

cjd1965

Lifetime Supporting Member
C
Join Date
Apr 2007
Location
UK
Posts
1,659
Hi
I have been asked to investigate a means of getting data from a Siemens S7 315-2dp to modbus RTU. Basically the existing BMS system will accept modbus rtu and will only READ data from a datablock within the PLC.

I notice Siemens do a card and i would have to also buy the modbus driver from siemens.

I also notice many gateway products, anybus etc.

Does anyone have experience of these gateways, and are they less hassle than the siemens own card (341?)

I am interested in opinions and recommendations

Cheers
 

Similar Topics

AutomationTechBrian
Siemens Step 7, Simatic Mgr, Adding a DO16 to an existing ET200M (Profibus)
I'm just trying to figure out the right method of adding a DO card to an existing rack. It's not the *next* open slot, but I have to move the AO...
Replies
5
Views
563
AutomationTechBrian
AutomationTechBrian
K
very slow online access to profibus Siemens plc
Kindly, we are trying to go online on an S7-300 plc, with profibus communication, using a CP5711 adapter. But when we open the Ladder and press...
Replies
0
Views
791
Kataeb
K
AutomationTechBrian
Siemens Step 7 Classic, Profibus, G120C VFD: Speed reference values
I'm trying to figure out how to read the actual speed reference value from the move blocks, writing to a DB that is being sent to the VFD. For...
Replies
5
Views
2,648
JRW
JRW
B
Quantum to Siemens comms over profibus
I have a piece of equipment with control split between two PLCs. A quantum 434, and a Siemens S7-300, communicating via profibus. I have a prosoft...
Replies
14
Views
5,334
GeorgeReichert
G
H
Help: Beckhoff profibus master FC3121 with Siemens CP342-5 slave
Dose anyone have experience with Beckhoff FC3121 profibus master PCIe card connected to Siemens CP342-5 as a profibus slave? The data retrieved...
2
Replies
17
Views
4,853
hosplc
H
Back
Top Bottom