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MODEL 2310 AL MCS-11 REMOTE ENCODER
6 FC2310_AL-20040506
FIAL
INCORPORATED
Frequency Attenuation
DC (0 Hertz)
0x
5 Hz
1.6x
10 Hz
2.8x
20 Hz
4.1x
60 Hz
14.5x
120 Hz
29.2x
240 Hz
58.3x
1000 Hz
175x
Table 2. ANALOG INPUT ATTENUATION VERSUS FREQUENCY
Shielded wire is recommended for connecting distant measuring points to the input connector, and
shielded pair cable is recommended for connecting differential inputs to the input connector.
MCS-11 COMMUNICATIONS PORTS:
The 2310 AL MCS-11 Remote Encoder has two MCS-11
communications ports available at two DB-15 female connectors on the rear of the unit. The ports
are labeled MCS-11 Port 1 and MCS-11 Port 2.
Each MCS-11 port can be configured for either RS-422 or RS-232 interface levels, and for either
synchronous or asynchronous modes of operation. Synchronous mode uses separate signals for
transmit data, receive data, transmit clock, and receive clock. Asynchronous mode only uses the
transmit data and receive data signals, it does not use separate clock signals.
In synchronous mode, Port 1 is strictly a DTE port. This means it accepts transmit and receive
clocks from another unit. Port 2 can be set to either DTE (accepts clock) or DCE (generates clock)
mode. DCE mode is only allowed for synchronous RS-422. The RS-232 interface is always DTE.
In asynchronous mode, both Port 1 and Port 2 are considered DTE ports. Either port may be set to
RS-422 or RS-232 interface levels. For asynchronous RS-422 mode, only transmit data and
receive data signals are used (1 pair of wires per signal). In asynchronous RS-232 mode, only
transmit data, receive data, and ground are used (1 wire per signal).
The DTE vs. DCE selection is made via the configuration program
and additionally, an internal
slide switch
. The cover must be removed to gain access to this switch. The configuration
program also sets the clock rate for DCE operation.
The unit always listens for polls on both of the ports and when polled, will either answer out the
receiving port only, or out both ports, as configured by the user. The unit can be configured to
bridge ALL, or a selected set, of MCS-11 polls and answers between the two ports. For all
addresses specified for bridging, all polls and answers received at either MCS-11 port are re-
transmitted out of the other MCS-11 port.