General Description - Sensor Electronics SEC 3500 HMI Hardware Manual

II. GENERAL DESCRIPTION
CONVENTIONS
The following conventions are used in this manual.
Warning Statement
VDC (DC Voltage)
SEC 3500 HMI
The SEC3500 HMI Operator Interface, an Attendant-Monitored system, continuously interrogates
up to 254 system devices over the 9600 baud RS485 Modbus Interface. The OI, operating as the
Modbus Master, can communicate with any SEC3XXX Device and any 4-20 transmitter via the
SEC3100AIM.
There is a power indicator LED located on the front panel of the 3500.
Network devices can be interrogated, configured, and calibrated using the password protected
touchscreen user interface.
16 embedded programmable relays provide external device control/interface based on network
events. Additional relays can be located anywhere on the network (groups of 8).
The Statcast RS232 interface continuously scrolls through system operating status. (Read only
for the user)
An Ethernet port allows remote access to system screens.
The SEC3500 HMI refers to the system as a whole, not just the SEC3500 (what is inside the metal
enclosure).
WARNING: SUBSTITUTION OF COMPONENTS MAY IMPAIR SAFETY
SEC P/N: 1460014
Rev / ECO: A / 000209 Page 6 of 26