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43 Siemens Industry, Inc.
ViewPoint HD/MD-xxHD Web App
If your MD-xxHD model does not include the LCD User Interface, or if you prefer to verify the installation
using software, then verification is facilitated through the ViewPoint HD PC application or the MD-xxHD
Web App which shares a common design. See the section on Configuration Details for an overview and
list of instructional videos for ViewPoint HD or the MD-xxHD Web App.
Physical Interface Verification
Serial Setup Verification
In a multidrop serial network, the host data format settings are typically known or specified and the slave
is adjusted to match. In some cases (long wiring runs, etc.), it may be necessary to experiment in
determining the fastest allowable baud rate for a given wiring configuration by changing BOTH the host
and slave devices. Configurations other than 8N1 are rare and it is advised to use this configuration for
Data Bits, Parity, and Number of Stop bits, if possible.
LAN Ethernet Network Verification
The MD-xxHD meter communicates using IEEE 802.3 Ethernet connectivity running at a 10/100 Mbps.
Verification of the meter settings over Ethernet includes ensuring that the IP address of the meter is within
a range that allows communication with a host (if static) or is set for DHCP, allowing the meter to be
assigned an address by a DHCP server as described below.
DHCP
If the MD-xxHD meter is configured for DHCP when the meter is powered on, or the Ethernet cable is
inserted, the meter is assigned an IP address by the DHCP server. This address appears on the meter
LCD or can be found through connection with ViewPoint HD or the MD-xxHD Web App. The IP address
assigned to the meter should be regarded as a
temporary address as the address may change between
power cycles making it difficult for the host system to know how to find the meter on the network. One
common approach is to set the MD-xxHD for DHCP so that the address can be assigned by a DHCP
server and then change that IP address to static once the connection is made. MD-xxHD meters are set
to use DHCP as a default setting to facilitate this approach.
Static IP
If the MD-xxHD meter is set to a static IP then its address should be assigned by an IT department to
avoid multiple devices on the same network. This scheme is usually used when an RTU is expecting to
find the meter at a specific IP address.