Connecting The Network Cables; Recommended Communication Cables; Building A Cable; Table 1-4 Standard Communication Cables - Siemens SIMATIC TI505 User Manual
Modnim
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Establishing Communications (continued)
Connecting the
Network Cables
Recommended
Communication
Cables
Building a Cable
1-20
Installation and Set-up
4.
Look at the chart for the number corresponding to the slot occupied by
the MODNIM module. If an S or SF (Special Function) and word
memory locations (or 8 Ys) appear on this line, the module is registered
in the PLC memory. Assign a unique I/O address to the module and
execute a Write PC function. You can now begin to communicate with
the MODNIM.
If the data on the line is incorrect, first check to see if the module is
firmly seated in the I/O base and enter the command again. If you still
cannot verify the module login, contact your local Siemens Industrial
Automation, Inc. distributor.
Network cabling should already be in place before you begin installing the
MODNIM.
The MODNIM has two communication ports. Only one port communicates
at a time, but two are provided for cabling redundancy.
For high-noise environments, it is recommended that you use a standard
Siemens communications cable with your MODNIM. (Refer to Table 1-4.)
Either cable is compatible with the MODNIM; the requirements of your host
computer may determine which cable you should select. These cables are
available through your Siemens Industrial Automation, Inc. distributor.
Table 1-4 Standard Communication Cables
Cable
Description
9-pin to 9-pin Standard 9-pin null modem
25-pin serial
Standard 25-pin null modem
If you prefer to build your own 25-pin cable, refer to Appendix A for the
pinouts. Ensure that the following requirements are met.
Cable conductors — 26 AWG, tinned and stranded copper wire, with
one uninsulated 26 AWG tinned copper drain wire
Cable shield — AL foil or aluminum-polyester foil and a 65% minimum
tinned copper braid shield
Outer jacket — polyvinyl chloride (PVC) or equivalent material, with a
UL rating of 30V, 60 C minimum
Connectors — 25-pin male D-connector, with contact pins of copper
alloy with gold flashing over nickel plate
Cable P/N
Adapter at Module
2601094–8001
9F–to–25M pin port adapter
VPU200–3605
None required
SIMATIC TI505/TI500 MODNIM User Manual
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