28
Wiring the RS-422A / RS-485 Devices
Section 2-3
2-3-7
Connection for E5AK/E5EK K-Format Communication
The E5AK/E5EK Intelligent Digital Controllers use the K-Format communica-
tions over either 4-wire RS-422A or 2-wire RS-485. Both are supported,
through dedicated communication option units. Refer to the E5AK/E5EK User
Manuals for more information on these dedicated communication units.
RS-422A Connection to
E5AK/E5EK
The RS-422A connection can be either one-to-one or one-to-N. Up to 15
E5AK/E5EK units can be connected in a one-to-N system.
The figure below shows the connection between one PRT1-SCU11 and 1 to
15 E5AK/E5EK Intelligent Digital Controller units. The table below shows the
pin numbers used on the E5AK and E5EK units for connection of communica-
tion signals. Refer to the E5AK/E5EK User Manuals for more information on
Wiring.
RS-485 Connection to
E5AK/E5EK
The E5AK/E5EK Intelligent Digital Controllers can also communicate over
RS-485, using the dedicated communication option for RS-485. Refer to the
E5AK/E5EK User Manuals for more information on the RS-485 dedicated
communication unit.
The RS-485 connection can be either one-to-one or one-to-N. Up to 15 E5AK/
E5EK units can be connected in a one-to-N system.
The figure below shows the connection between one PRT1-SCU11 and 1 to
15 E5AK/E5EK Intelligent Digital Controller units. Refer to the E5AK/E5EK
User Manuals for more information on Wiring
R-
R+
FG
S-
RS-422
S+
PRT1-SCU11
RS-422 Interface
SDB
SDA
RDB
RS-422
RDA
SDB
SDA
RDB
RS-422
RDA
Terminator
220
Ω
, 1/2W
E5AK / E5EK (1)
(See table below)
E5AK / E5EK (15)
(See table below)
RS-422A Signal
E5AK Pin number
E5EK Pin number
SDB (Transmission line)
31
21
SDA (Transmission line)
32
22
RDB (Receiver line)
20
20
RDA (Receiver line)
19
19
Summary of Contents for PROFIBUS DP GATEWAY
Page 1: ...OPERATION MANUAL PROFIBUS DP Gateway to Host Link Compoway F PRT1 SCU11 Cat No W01E EN 02 ...
Page 2: ...PRT1 SCU11 PROFIBUS DP Gateway Operation Manual Revised September 19 2005 ...
Page 3: ...iv ...
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