Difference Between Eh-Rmp2 And Eh-Rmp - Hitachi EH-RMP2 Applications Manual

1.4

Difference between EH-RMP2 and EH-RMP

There are some differences between EH-RMP2 and EH-RMP.
(1) Configuration tool
EH-RMP : Sycon
EH-RMP2 : SYCON.net
(2) Configuration cable
EH-RMP : Exclusive serial cable
EH-RMP2 : USB cable (The cable currently used in EHV series can be used.)
(3) Bus Termination
EH-RMP : Built-in
EH-RMP2 : Not built-in (Please use a connector which has a termination switch.)
!
CAUTION
EH-RMP2 expands the input and output size to use in PROFIBUS network in comparison with
EH-RMP. For this reason, inspite of standard mode / compatible mode, the input data of the PROFIBUS
network may be rarely affected under noise environment. As measures method under the noise
environment, we recommend the following measures.
(1) PROFIBUS cable and signal cables of various input and output modules must be routed in metal
duct separated from power cables.
(2) The shield wire of PROFIBUS cable must be grounded both ends.
(3) By increasing the capacity of the power supply for the input and output signals, reduce the voltage
fluctuation due to noise.
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Chapter 1 Introduction