Siemens SIMATIC TI505 Manual do Utilizador descarregar pdf (Página 31)

Installation and Set-up

1-20

SIMATIC TI505/TI500 MODNIM User Manual

Establishing Communications (continued)

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 W

rite PC function. Y

ou 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 T

able 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

able 1-4

Standar

d Communication Cables

Cable Description Cable P/N Adapter at Module

9-pin

to 9-pin

Standard 9-pin null modem

2601094–8001

9F–to–25M pin port adapter

25-pin serial

Standard 25-pin null modem

VPU200–3605 None required

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 A

WG 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

Connecting the

Network Cables

Recommended

Communication

Cables

Building a Cable

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 90 91

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