Restrictions On Number Of Units That Can Be Installed; Restrictions On Unit Version And Functions; Functions Of Et-Lan Unit And Applicable Versions; Precautions When Using The E-Mail Function - Panasonic FP2 ET-LAN Technical Manual

1.3.3 Restrictions on Number of Units that can be Installed

The following restrictions apply when installing the ET-LAN unit in a programmable controller.
Unit name
ET-LAN unit
Multi-wire link unit
(MEWNET-W2 mode)
Note:
If the hierarchical link function is being used through the MEWNET and the communication path includes
an MEWNET-W, the maximum number of units that can be installed is two, for the units noted below.
ET-LAN unit
-
Multi-wire link unit
-
Computer communication unit
-

1.4 Restrictions on Unit Version and Functions

The required versions of ET-LAN unit and CPU unit vary according to the used functions.

1.4.1 Functions of ET-LAN Unit and Applicable Versions

Functions of ET-LAN Unit
Self-diagnosis function
Data transfer function
MEWTOCOL-COM communication
-
MEWTOCOL-DAT communication
-
Transparent communication function
Error log function
Auto connection function
Auto connection
-
System connection
-
E-mail function

1.4.2 Precautions when using the e-mail function

The calendar function is required for the CPU unit for using the e-mail function.
Add the following optional memory with the calendar function for using the FP2 CPU unit.
Expansion memory unit FP2-EM1 (AFP2201)
It is not necessary to add the optional memory when using the FP2SH CPU unit as the calendar function
is built in the CPU unit.
Reference: <FP2/FP2SH User's Manual (ARCT1F320)
2.3.1 Expansion Memory Unit/ROM <Option (FP2-EM)>
When there is no calendar function, the time to be recorded in e-mails is always the following time.
1 Jan. 2030 Tuesday 00:00:00 (Japan time)
Indication: Date: Tue, 01 Jan 2030 00:00:00 +900
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Restrictions on number of units
For FP2 CPU unit
Up to 3 units
(up to 2 units for link between PLCs)
Version of ET-LAN Unit
Available with all the versions of
ET-LAN unit.
Ver.2.00 or later of ET-LAN unit is
required.
FP2-EM2(AFP2202)
FP2-EM3(AFP2203)
For FP2SH CPU unit
Up to 8 units
(up to 2 units for link between PLCs)
Version of CPU unit
FP2 CPU unit
Ver. 1.08 or later
FP2SH CPU unit
Ver. 1.02 or later
FP2 CPU unit
Ver. 1.21 or later
FP2SH CPU unit
Ver. 1.10 or later