7188XA/B/C & 7521/2/2A/3/4/7 Series Hardware User’ s Manual, Ver. 2.0 Sep/2002, 7Mh-001-20 -----
10
1.1.7 1/2/3-port Addressable RS-232 Converter?
The 4521 is used as an addressable RS-232 converter. It can assign an
address to any RS-232 device in the same RS-485 network. Because the
firmware of the 4521 cannot be modified & the application is different case by
case, many customers complain about the limitations of the 4521. The
7521/7522/7523 are designed to act as a “1/2/3 port Addressable RS-232
Converter”. The firmware of the 7521/7522/7523 can be modified based on
the user’ s special requirements. The onboard industry D/I/O can be used to
control the local devices for emergency conditions. So, the 7521/7522/7523
can solve nearly every “Addressable RS-232 Converter” application.
1.1.8
7188XA/7188XB/7188XC = Addressable RS-232 Converter?
The 7188/7188XA/7188XB/7188XC is designed as an embedded
controller. Therefore, any software can be downloaded into it. If the firmware
for an ”Addressable RS-232 Converter” is downloaded into a
7188/7188XA/7188XB/7188XC, they will act as an “Addressable RS-232
Converter”. Consequently, the most low cost, “Addressable RS-232
Converter” is the
”Addressable RS-232 Converter Firmware”
.
7188XC
The most low cost embedded controller
Addressable
RS-232
Converter
Firmware
The most low cost “Addressable RS-232 Converter”
(without isolation on RS-485 port)
+
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