KMB NOVAR-1 Series, Руководство по эксплуатации

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Novar 1xxx KMB systems
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The interface allows connecting up to 32 instruments at a distance up to about 1 kilometre.
Recommended cable is shielded twisted metallic double pair. Use one pair for DATA A and DATA B
signals and the second pair for GND/C signal interconnection.
RS-485 line requires impedance termination of the final nodes by installing terminating resistors for
communication distances of a few tens of metres and longer. Terminating resistors matching the
cable’s wave impedance are connected between terminals 14 and 15 (DATA A and DATA B). The
instrument has a built-in terminating resistor of 330 ohms. It is connected between DATA B-signal
(terminal 15) and TR-terminal (13) inside the instrument. To install the resistor, simply interconnect
terminals DATA A (14) and TR (13).
If the communication cable is hundreds of meters long and in environments with electromagnetic
noise it is suitable to use shielded cable. The shielding connects to the PE (protection earth) wire at
one end of the cable.
2.2.7.2 Ethernet (IEEE802.3) Interface
Using this interface the instruments can be connected directly to the local computer network (LAN).
Instruments with this interface are equipped with a corresponding connector RJ- 45 with eight signals
(in accordance with ISO 8877), a physical layer corresponds to 10/100 BASE- T.
Type and maximum length of the required cable must respond to IEEE 802.3. Each instrument must
have a different IP- address, preset during the installation.
Physically, the interface is created with embedded Ethernet-to-serial converter ES01. Setup of the
module can be found in application handbook
ES01 Embedded Ethernet to Serial Link Converter that
is available on www.kmbsystems.eu .
Fig. 2.6 : Controller with Ethernet Interface Rear Panel