ABB Symphony Harmony Series, Instruction, Page: 96 / 402

Harmony Controllers
WBPEEUI240751C0 1 - 5
lists the currently available I/O and auxiliary blocks.
Table
1-2 summarizes I/O block capabilities. Refer to
Section 2 for a description of each block and its specifications.
Harmony Controllers
A Harmony controller, either a Harmony bridge controller or
Harmony area controller, performs the actual process control.
It receives its process inputs from either or both Harmony I/O
blocks and Harmony rack I/O devices and provides the control
outputs through these blocks and devices.
The controller can communicate with Harmony I/O blocks and
Harmony rack I/O devices simultaneously. All Harmony I/O
system configuration is performed through the controller.
Harmony Bridge Controller
A Harmony bridge controller (BRC) is a rack-mounted control-
ler that occupies one slot in a module mounting unit. It sup-
ports Hnet communication protocol, device labeling, and the
function code environment necessary to configure and operate
the Harmony I/O system. Refer to the
Harmony Bridge Con- Harmony Bridge Con- Harmony Bridge Con- Harmony Bridge Con-
troller troller troller troller instruction for a detailed description.
Table 1-1. Available I/O and Auxiliary Blocks
Block Description
AIN-120 Current, high level voltage in
AIN-200 Isolated high level voltage, low level voltage, TC in
AIN-220 Isolated current, high level voltage, low level voltage, TC in
AIN-300 Isolated RTD in
AOT-150 Current out
CIO-100 Control loop in/out
CIO-110 Electric drive/pulse positioner termination (for CIO-100)
1
DIO-400 Universal digital in, 24 or 48 VDC digital out
DOT-100 Onboard electromechanical relay out
DOT-120 Onboard monitored electromechanical relay out (with fusing)
RLY-100 Electromechanical relay assembly (for DIO-400)
1
RLY-200 Solid state relay assembly (for DIO-400)
1
NOTE :
1. Auxiliary block used to extend I/O block capabilities.