Automation Direct Do-more H2 PLC Series, Руководство пользователя по оборудованию

Страница: 188 / 242

Do-more H2 Series PLC User Manual, 1st Edition, Rev. F - H2-DM-M
7–22
Chapter 7: Specifications - Specialty Modules
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D
H2-ERM(100)/ H2-EBC100*
NOTE: The H2-ERM module has been discontinued. The H2-ERM100 is the replacement module.
H2-ERM(100) Overview
Expanding I/O beyond the local chassis is useful for a system which has a sufficient number of
sensors and other field devices located a relatively long distance from the CPU. The Ethernet
Remote Master H2-ERM(100) connects Do-more CPU systems to slave I/O over a high-
speed Ethernet link.
Each ERM module can support up to 16 H2-EBC systems, 16 Terminator I/O EBC systems,
or 16 fully expanded H4-EBC systems. Of course, combinations are fine, too.
NOTE: Applications requiring an extremely large number of T1H-EBC analog I/O or H4-EBC 16-channel
analog I/O, could exceed the buffer capacity of a single H2-ERM(100) module. In these cases, an
additional H2-ERM(100) may be required.
The ERM connects to your control network using Category 5 UTP cables for cable runs up
to 100 meters (328ft). Use Ethernet switches to extend distances and expand the number of
nodes.
The PLC, ERM and EBC slave modules work together to update the remote I/O points.
These three scan cycles are occurring at the same time, but asynchronously. Critical I/O
points that must be monitored every scan are best placed in the CPU base.
It is highly recommended that a dedicated Ethernet remote I/O network be used for the ERM
and its slaves. While Ethernet networks can handle a large number of data transactions, and
normally handle them very quickly, heavy Ethernet traffic can adversely affect the reliability
of the slave I/O and the speed of the I/O network. Ensure ERM networks, multiple ERM
networks and ECOM/office networks are isolated from one another.
H2-ERM(100) Specifications
H2-ERM(100) Ethernet Remote I/O Master Module
Specifications H2-ERM H2-ERM100
Module Type
Ethernet Communications Master Module
Slaves per ERM 16 Max
Communications 10BaseT Ethernet 10/100BaseT Ethernet
Data Transfer Rate 10Mbps 100Mbps
Ethernet Port RJ45
Power Consumption 320mA @5VDC 300mA @5VDC
Operating Environment
0ºC to 60ºC (32ºF to 140ºF), 35% to 95% humidity (non-
condensing)
Link Distance 100m (328ft)
Ethernet Protocols TCP/IP, IPX
TCP/IP, IPX
Modbus TCP/IP, DHCP,
HTML configuration
LINKGD
ACTIVE
ERROR
H2-ERM100
10/100BASE-T
ETHERNET PORT
LINKGD
ACTIVE
ERROR
H2-ERM
10BASE-T
ETHERNET PORT