6 - 9
6 Programless Communications
E5@D Digital Temperature Controllers Communications Manual (H225)
6-2 E5
@
D Set
u
p
6
6-
2-5 Highest Commun
icatio
ns U
nit N
o.
Set the Highest Communications Unit No. parameter to the highest communications unit number that is
actually set on the connected E5
@
D Controllers.
Make sure that setting of the Highest Communications Unit No. parameter agrees with the unit num-
bers of the E5
@
D Controllers that are actually connected.
Communications Setting Level
Display condition: The Protocol Setting parameter must be set to
fins
,
mcp4
, or
fxp4
.
Two areas are used in PLC memory by the E5
@
D, an upload area and a download area. The upload
area is used to monitor the process value, status, and other information from the E5
@
D. The download
area is used to write the set point, alarm values, and other values to the E5
@
D.
The Response Flag, Communications Status, Request Flag, and Operation Command Code all have
special functions that cannot be changed. Refer to the following sections for application methods.
Request Flag:
6-3-1 Controlling Programless Communications with the Request Flag
Response Flag:
6-3-2 Response Flag
Operation Command Code:
6-3-4 Operation Command Codes
Communications Status:
6-3-5 Confirming Operation of Programless Communications
The portion of PLC memory to use is set with the Area, First Address Upper Word, and First Address
Lower Word parameters.
6-2-5
Highest Communications Unit No.
Parameter name
Displayed characters
Setting range
Default
Highest Communications Unit No.
maxu
0 to 99
0
6-2-6
Areas and First Address of Linked Data
Address
Data in PLC
memory
Upload
Area
XXXX Response Flag
This flag indicates the completion of processing for the Request Flag.
+1 Communications
Status
The status that is given at this address is used in the PLC to check the operation
of programless communications.
+2 Monitor Value 1
Information from the E5
@
D, such as the PV or status, is set at these addresses.
The parameters that are actually used are set in the upload settings.
+3 Monitor Value 2
· · ·
+14 Monitor Value 13
Download
Area
+15 Request Flag
This flag is used to control programless communications.
+16 Operation
Command Code
The operation command that corresponds to the code is sent.
+17 Set Value 1
The set values at these addresses are written to the E5
@
D, such as to the set
point or alarm values. The parameters that are actually used are set in the
download settings.
+18 Set Value 2
· · ·
+29 Set Value 13
E5CD
No.0
E5CD
No.1
E5CD
No.2
PLC
The highest communica-
tions unit number is 2.
Set the communications
unit numbers starting
from 0.
Summary of Contents for E5 D Series
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