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3 SPECIFICATIONS
3.6 Input/output signals for master module
The input/output signals (RX/RY) for the R2 master module are explained in this
section.
3.6.1 List of input/output signals
A list of the R2 input/output signals is shown below.
Signal direction Master module R2 Signal direction Master module R2
Device No. (input) Signal name Device No. (output) Signal name
RXn0 Transmission normal complete RYn0 Transmission request
RXn1 Transmission error complete RYn1 Transmission cancel request
RXn2 Reception normal read request RYn2 Reception read complete
RXn3 Reception error read request RYn3 Forced reception complete request
RXn4 Initialization normal complete RYn4 Initialization request
RXn5 Initialization error complete RYn5 Use prohibited
RXn6 OS reception area clear complete RYn6 OS reception area clear request
RXn7 EEPROM function normal complete RYn7 EEPROM function request
RXn8 EEPROM function error complete RYn8 Use prohibited
RXn9 CS (CTS) signal RYn9
RS (RST) signal *
1
RXnA DR (DSR) signal RYnA
Signal setting
ER (DTR) signal *
2
RXnB
Signal status
CD signal RYnB Use prohibited
RXnC to RXnD General-purpose external input signal RYnC to RYnD General-purpose external output signal
RXnE to RX(n+1)8 Use prohibited RYnE to RY(n+1)8 Use prohibited
RX(n+1)9 Initial data read complete RY(n+1)9 Initial data read request
RX(n+1)A Error state RY(n+1)A Error reset request
RX(n+1)B Remote station ready
RX(n+1)C to
RX(n+1)D
Use prohibited
RY(n+1)B to RY(n+1)D Use prohibited
RX(n+1)E Intelligent device station access complete RY(n+1)E Intelligent device station access request
RX(n+1)F Use prohibited RY(n+1)F Use prohibited
n: Address assigned to master module with station No. setting.
*1 The RS signal setting is valid when the "RS signal status designation (
R2 101H)" is set to "Follow
RYn9 ON/OFF (1)". (Refer to section 8.9.)
*2 The ER signal setting is invalid when the "Flow control designation (
R2 100H)" is set to "Carry out
flow control. (DTR/DSR/ (ER/DR) control) (1)".
Important
Do not designate the RXn0 to RXn8, RXnE to RX(n+1)F, RYn0 to RYn9, RYnB, or RYnE to
RY (N+1)F signals to the following functions.
Monitor target RX/RY for monitor transmission function
Reference RX/RY for registration frame RX/RY/RW reference special character.
Do not output (turn ON) the usage-prohibited signals.
If an output is carried out to a usage-prohibited signal, the programmable controller system
could malfunction.