From bd398a02289ace777c94ee2eb5a45b1642b25ad0 Mon Sep 17 00:00:00 2001 From: Ron Sluiter Date: Fri, 30 Nov 2007 18:56:20 +0000 Subject: [PATCH] Clarify RS232 vs. RS485 support. --- motorApp/SmartMotorSrc/README | 29 +++++++++++++++++++++-------- 1 file changed, 21 insertions(+), 8 deletions(-) diff --git a/motorApp/SmartMotorSrc/README b/motorApp/SmartMotorSrc/README index d68cfccf..6ea72c43 100644 --- a/motorApp/SmartMotorSrc/README +++ b/motorApp/SmartMotorSrc/README @@ -1,9 +1,9 @@ -The Animatics SmartMotor EPICS device driver supports both single -and daisy chain serial connections. +The Animatics SmartMotor EPICS device driver supports both single and daisy +chained serial connections. -For daisy chain applications, the following program must be -down loaded to each motor in the chain. Set "#" below to -the address of each consecutive motor; starting with 1. +For RS232 daisy chained applications, the following program must be down loaded +to each motor in the chain. Set "#" below to the address of each consecutive +motor; starting with 1. SADDR# ECHO @@ -11,9 +11,22 @@ LIMD <- Omit from firmware 4.77 and above. LIMH END +For RS232 or RS485 non-daisy-chained applications, the EPICS device driver +requires that echo mode be turned off (ECHO_OFF). -Design Restriction and Limitations -================================== +From the Animatics "SmartMotor User's Guide"; +"A single RS-232 SmartMotor can operate in either state, but a daisy chain of +RS-232 SmartMotors must operate in ECHO mode for data to get through the +network. RS-485 SmartMotors must operate in the ECHO_OFF mode or there will be +data collisions." + +Device Driver Design Restriction and Limitations +================================================ - This device driver only supports SmartMotor firmware versions 4.15 -and above. + and above. + +- A network of RS-485 SmartMotor's is not supported by this device driver. + +- Non-daisy-chained SmartMotor's (i.e., a serial port for each SmartMotor) must + have their echo mode turned off (ECHO_OFF).